taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982307/files/figure.png	https://doi.org/10.5281/zenodo.16982307	FIGURE 1. Cytherissa glomerata Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 17; E–H—paralectotype No. 19. Scale 500 µm.	FIGURE 1. Cytherissa glomerata Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 17; E–H—paralectotype No. 19. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984427/files/figure.png	https://doi.org/10.5281/zenodo.16984427	FIGURE 2. Cytherissa glomerata Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior.A—paralectotype No. 9; B—paralectotype No. 10; C—paralectotype No. 12; D—paralectotype No. 11; E, F—paralectotype No. 17. Scale 500 µm.	FIGURE 2. Cytherissa glomerata Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior.A—paralectotype No. 9; B—paralectotype No. 10; C—paralectotype No. 12; D—paralectotype No. 11; E, F—paralectotype No. 17. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984429/files/figure.png	https://doi.org/10.5281/zenodo.16984429	FIGURE 3. Cytherissa glomerata Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 13; B—paralectotype No. 14; C—paralectotype No. 16; D—paralectotype No. 15; E, F—paralectotype No. 19. Scale 500 µm.	FIGURE 3. Cytherissa glomerata Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 13; B—paralectotype No. 14; C—paralectotype No. 16; D—paralectotype No. 15; E, F—paralectotype No. 19. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984439/files/figure.png	https://doi.org/10.5281/zenodo.16984439	FIGURE 7. Cytherissa glomerata Mazepova, 1990 (A–C) and Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990 (D–F), SEM photographs of some elements of carapace structure of females (B, C, F) and males (A, D, E): A—central part of RV, laterally; B—central part of LV, laterally; C—microrelief, pore canals and broken sensilla; D—central part of carapace, ventrally; E—microrelief, pore canals and sensilla; F—posterior part of RV, laterally.Arrows point towards the anterior.A—paralectotype No. 13; B, C—paralectotype No. 10; D—specimen No. 19; E—specimen No. 17; F—specimen No. 13. Scale, µm: A, B, D, F—100; C, E—20.	FIGURE 7. Cytherissa glomerata Mazepova, 1990 (A–C) and Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990 (D–F), SEM photographs of some elements of carapace structure of females (B, C, F) and males (A, D, E): A—central part of RV, laterally; B—central part of LV, laterally; C—microrelief, pore canals and broken sensilla; D—central part of carapace, ventrally; E—microrelief, pore canals and sensilla; F—posterior part of RV, laterally.Arrows point towards the anterior.A—paralectotype No. 13; B, C—paralectotype No. 10; D—specimen No. 19; E—specimen No. 17; F—specimen No. 13. Scale, µm: A, B, D, F—100; C, E—20.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFABF116998EFF0E5A56FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984431/files/figure.png	https://doi.org/10.5281/zenodo.16984431	FIGURE 4. Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally.A–D—specimen No. 20; E–H—specimen No. 21.Arrows point towards the anterior. Scale 500 µm.	FIGURE 4. Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally.A–D—specimen No. 20; E–H—specimen No. 21.Arrows point towards the anterior. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984433/files/figure.png	https://doi.org/10.5281/zenodo.16984433	FIGURE 5. Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 13; B—specimen No. 12; C—specimen No. 15; D—specimen No. 14; E, F—specimen No. 20. Scale 500 µm.	FIGURE 5. Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 13; B—specimen No. 12; C—specimen No. 15; D—specimen No. 14; E, F—specimen No. 20. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984437/files/figure.png	https://doi.org/10.5281/zenodo.16984437	FIGURE 6. Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 17; B—specimen No. 16; C—specimen No. 19; D—specimen No. 18; E, F—specimen No. 21. Scale 500 µm.	FIGURE 6. Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 17; B—specimen No. 16; C—specimen No. 19; D—specimen No. 18; E, F—specimen No. 21. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984439/files/figure.png	https://doi.org/10.5281/zenodo.16984439	FIGURE 7. Cytherissa glomerata Mazepova, 1990 (A–C) and Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990 (D–F), SEM photographs of some elements of carapace structure of females (B, C, F) and males (A, D, E): A—central part of RV, laterally; B—central part of LV, laterally; C—microrelief, pore canals and broken sensilla; D—central part of carapace, ventrally; E—microrelief, pore canals and sensilla; F—posterior part of RV, laterally.Arrows point towards the anterior.A—paralectotype No. 13; B, C—paralectotype No. 10; D—specimen No. 19; E—specimen No. 17; F—specimen No. 13. Scale, µm: A, B, D, F—100; C, E—20.	FIGURE 7. Cytherissa glomerata Mazepova, 1990 (A–C) and Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990 (D–F), SEM photographs of some elements of carapace structure of females (B, C, F) and males (A, D, E): A—central part of RV, laterally; B—central part of LV, laterally; C—microrelief, pore canals and broken sensilla; D—central part of carapace, ventrally; E—microrelief, pore canals and sensilla; F—posterior part of RV, laterally.Arrows point towards the anterior.A—paralectotype No. 13; B, C—paralectotype No. 10; D—specimen No. 19; E—specimen No. 17; F—specimen No. 13. Scale, µm: A, B, D, F—100; C, E—20.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFAFF119998EFE1E5B67FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984447/files/figure.png	https://doi.org/10.5281/zenodo.16984447	FIGURE 8. Cytherissa derupta Mazepova, 1984, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 20; E–H— paralectotype No. 22. Scale 500 µm.	FIGURE 8. Cytherissa derupta Mazepova, 1984, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 20; E–H— paralectotype No. 22. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984449/files/figure.png	https://doi.org/10.5281/zenodo.16984449	FIGURE 9. Cytherissa derupta Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 12; B—paralectotype No. 13; C—paralectotype No. 15; D—paralectotype No. 14; E, F—paralectotype No. 20. Scale 500 µm.	FIGURE 9. Cytherissa derupta Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 12; B—paralectotype No. 13; C—paralectotype No. 15; D—paralectotype No. 14; E, F—paralectotype No. 20. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984455/files/figure.png	https://doi.org/10.5281/zenodo.16984455	FIGURE 10. Cytherissa derupta Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 16; B—paralectotype No. 17; C—paralectotype No. 19; D—paralectotype No. 18; E, F—paralectotype No. 22. Scale 500 µm.	FIGURE 10. Cytherissa derupta Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 16; B—paralectotype No. 17; C—paralectotype No. 19; D—paralectotype No. 18; E, F—paralectotype No. 22. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984457/files/figure.png	https://doi.org/10.5281/zenodo.16984457	FIGURE 11. Cytherissa derupta Mazepova, 1984, SEM photographs of some elements of female carapace structure (A–E) and male body (F): A—posterior part of RV; B—anterior part of RV; C—central part of carapace, dorsally; D—central part of carapace, ventrally; E—pore canals and sensilla; F—hemipenis. In A–E, arrows point towards the anterior.A, B—paralectotype No. 12; C—paralectotype No. 14; D—paralectotype No. 15; E—paralectotype No. 13; F—paralectotype No. 21. Scale, µm: A–D, F—100; E—20.	FIGURE 11. Cytherissa derupta Mazepova, 1984, SEM photographs of some elements of female carapace structure (A–E) and male body (F): A—posterior part of RV; B—anterior part of RV; C—central part of carapace, dorsally; D—central part of carapace, ventrally; E—pore canals and sensilla; F—hemipenis. In A–E, arrows point towards the anterior.A, B—paralectotype No. 12; C—paralectotype No. 14; D—paralectotype No. 15; E—paralectotype No. 13; F—paralectotype No. 21. Scale, µm: A–D, F—100; E—20.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFA2F11D998EFF0E5A79F831.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984459/files/figure.png	https://doi.org/10.5281/zenodo.16984459	FIGURE 12. Cytherissa cytheriformis Bronstein, 1947, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—specimen No. 30; E–H— specimen No. 29. Scale 500 µm.	FIGURE 12. Cytherissa cytheriformis Bronstein, 1947, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—specimen No. 30; E–H— specimen No. 29. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984461/files/figure.png	https://doi.org/10.5281/zenodo.16984461	FIGURE 13. Cytherissa cytheriformis Bronstein, 1947, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 21; B—specimen No. 22; C—specimen No. 24; D—specimen No. 23; E, F—specimen No. 30. Scale 500 µm.	FIGURE 13. Cytherissa cytheriformis Bronstein, 1947, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 21; B—specimen No. 22; C—specimen No. 24; D—specimen No. 23; E, F—specimen No. 30. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984465/files/figure.png	https://doi.org/10.5281/zenodo.16984465	FIGURE 14. Cytherissa cytheriformis Bronstein, 1947, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 25; B—specimen No. 26; C—specimen No. 28; D—specimen No. 27; E, F—specimen No. 29. Scale 500 µm.	FIGURE 14. Cytherissa cytheriformis Bronstein, 1947, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—specimen No. 25; B—specimen No. 26; C—specimen No. 28; D—specimen No. 27; E, F—specimen No. 29. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984467/files/figure.png	https://doi.org/10.5281/zenodo.16984467	FIGURE 15. Cytherissa cytheriformis Bronstein, 1947, SEM photographs of some elements of carapace structure of females (B, C, E) and males (A, D, F): A—dorsal margin, laterally; B—anterior part of RV, laterally; C—protrusion in posterior part of RV, laterally; D—posterior part of LV, laterally; E—central part of carapace, ventrally; F—pore canals and sensilla. Arrows point towards the anterior. A—specimen No. 25; B, C—specimen No. 21; D, F—specimen No. 26; E—specimen No. 24. Scale, µm: A–E—100; F—20.	FIGURE 15. Cytherissa cytheriformis Bronstein, 1947, SEM photographs of some elements of carapace structure of females (B, C, E) and males (A, D, F): A—dorsal margin, laterally; B—anterior part of RV, laterally; C—protrusion in posterior part of RV, laterally; D—posterior part of LV, laterally; E—central part of carapace, ventrally; F—pore canals and sensilla. Arrows point towards the anterior. A—specimen No. 25; B, C—specimen No. 21; D, F—specimen No. 26; E—specimen No. 24. Scale, µm: A–E—100; F—20.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB9F100998EFF0E5EA7F803.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984471/files/figure.png	https://doi.org/10.5281/zenodo.16984471	FIGURE 16. Cytherissa golyschkinae Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 22; E–H—paralectotype No. 23. Scale 500 µm.	FIGURE 16. Cytherissa golyschkinae Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 22; E–H—paralectotype No. 23. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984475/files/figure.png	https://doi.org/10.5281/zenodo.16984475	FIGURE 17. Cytherissa golyschkinae Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 15; B—paralectotype No. 14; C—paralectotype No. 17; D—paralectotype No. 16; E, F—paralectotype No. 22. Scale 500 µm.	FIGURE 17. Cytherissa golyschkinae Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 15; B—paralectotype No. 14; C—paralectotype No. 17; D—paralectotype No. 16; E, F—paralectotype No. 22. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984478/files/figure.png	https://doi.org/10.5281/zenodo.16984478	FIGURE 18. Cytherissa golyschkinae Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 19; B—paralectotype No. 18; C—paralectotype No. 21; D—paralectotype No. 20; E, F—paralectotype No. 23. Scale 500 µm.	FIGURE 18. Cytherissa golyschkinae Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 19; B—paralectotype No. 18; C—paralectotype No. 21; D—paralectotype No. 20; E, F—paralectotype No. 23. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984492/files/figure.png	https://doi.org/10.5281/zenodo.16984492	FIGURE 22. Cytherissa golyschkinae Mazepova, 1990 (A, C, D) and Cytherissa obrutshevi Mazepova, 1990 (B, E), SEM photographs of some elements of carapace (A, B) and body (C–E) structure of females (B) and males (A, C, D, E): A—central part of LV, laterally; B—central part of carapace, ventrally; C—mandible gnathobase; D, E—hemipenis. In A, B, arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 21; C, D—paralectotype No. 24; E—paralectotype No. 26. Scale, µm: A, B—100; C—20; D, E—200.	FIGURE 22. Cytherissa golyschkinae Mazepova, 1990 (A, C, D) and Cytherissa obrutshevi Mazepova, 1990 (B, E), SEM photographs of some elements of carapace (A, B) and body (C–E) structure of females (B) and males (A, C, D, E): A—central part of LV, laterally; B—central part of carapace, ventrally; C—mandible gnathobase; D, E—hemipenis. In A, B, arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 21; C, D—paralectotype No. 24; E—paralectotype No. 26. Scale, µm: A, B—100; C—20; D, E—200.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFBCF107998EFF0E5FB2FE9C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984482/files/figure.png	https://doi.org/10.5281/zenodo.16984482	FIGURE 19. Cytherissa obrutshevi Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 27; E–H—paralectotype No. 26. Scale 500 µm.	FIGURE 19. Cytherissa obrutshevi Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 27; E–H—paralectotype No. 26. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984486/files/figure.png	https://doi.org/10.5281/zenodo.16984486	FIGURE 20. Cytherissa obrutshevi Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 19; C—paralectotype No. 21; D—paralectotype No. 20; E, F—paralectotype No. 27. Scale 500 µm.	FIGURE 20. Cytherissa obrutshevi Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 19; C—paralectotype No. 21; D—paralectotype No. 20; E, F—paralectotype No. 27. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984488/files/figure.png	https://doi.org/10.5281/zenodo.16984488	FIGURE 21. Cytherissa obrutshevi Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 22; B—paralectotype No. 23; C—paralectotype No. 25; D—paralectotype No. 24; E, F—paralectotype No. 26. Scale 500 µm.	FIGURE 21. Cytherissa obrutshevi Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 22; B—paralectotype No. 23; C—paralectotype No. 25; D—paralectotype No. 24; E, F—paralectotype No. 26. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984492/files/figure.png	https://doi.org/10.5281/zenodo.16984492	FIGURE 22. Cytherissa golyschkinae Mazepova, 1990 (A, C, D) and Cytherissa obrutshevi Mazepova, 1990 (B, E), SEM photographs of some elements of carapace (A, B) and body (C–E) structure of females (B) and males (A, C, D, E): A—central part of LV, laterally; B—central part of carapace, ventrally; C—mandible gnathobase; D, E—hemipenis. In A, B, arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 21; C, D—paralectotype No. 24; E—paralectotype No. 26. Scale, µm: A, B—100; C—20; D, E—200.	FIGURE 22. Cytherissa golyschkinae Mazepova, 1990 (A, C, D) and Cytherissa obrutshevi Mazepova, 1990 (B, E), SEM photographs of some elements of carapace (A, B) and body (C–E) structure of females (B) and males (A, C, D, E): A—central part of LV, laterally; B—central part of carapace, ventrally; C—mandible gnathobase; D, E—hemipenis. In A, B, arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 21; C, D—paralectotype No. 24; E—paralectotype No. 26. Scale, µm: A, B—100; C—20; D, E—200.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB0F10A998EFF0E5D5FFE70.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984496/files/figure.png	https://doi.org/10.5281/zenodo.16984496	FIGURE 23. Cytherissa calva Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 22; E–H— paralectotype No. 19. Scale 500 µm.	FIGURE 23. Cytherissa calva Mazepova, 1990, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 22; E–H— paralectotype No. 19. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984498/files/figure.png	https://doi.org/10.5281/zenodo.16984498	FIGURE 24. Cytherissa calva Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B— laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 10; B—paralectotype No. 9; C—paralectotype No. 12; D—paralectotype No. 11; E, F— paralectotype No. 22. Scale 500 µm.	FIGURE 24. Cytherissa calva Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B— laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 10; B—paralectotype No. 9; C—paralectotype No. 12; D—paralectotype No. 11; E, F— paralectotype No. 22. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984500/files/figure.png	https://doi.org/10.5281/zenodo.16984500	FIGURE 25. Cytherissa calva Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B— laterally, outer side; C—dorsally; D—LV laterally, inner side; E—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 14; B—paralectotype No. 13; C—paralectotype No. 15; D, E—paralectotype No. 19. Scale 500 µm.	FIGURE 25. Cytherissa calva Mazepova, 1990, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B— laterally, outer side; C—dorsally; D—LV laterally, inner side; E—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 14; B—paralectotype No. 13; C—paralectotype No. 15; D, E—paralectotype No. 19. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984504/files/figure.png	https://doi.org/10.5281/zenodo.16984504	FIGURE 26. Cytherissa calva Mazepova, 1990, SEM photographs of some elements of female carapace structure (A–C) and male body (D): A—central part of LV, laterally; B—posterior part of the carapace, dorsally; C—posterior part of the carapace, ventrally; D—hemipenis. In A–C, arrows point towards the anterior. A—paralectotype No. 9; B—paralectotype No. 11; C— paralectotype No. 12; D—paralectotype No. 13. Scale 100 µm.	FIGURE 26. Cytherissa calva Mazepova, 1990, SEM photographs of some elements of female carapace structure (A–C) and male body (D): A—central part of LV, laterally; B—posterior part of the carapace, dorsally; C—posterior part of the carapace, ventrally; D—hemipenis. In A–C, arrows point towards the anterior. A—paralectotype No. 9; B—paralectotype No. 11; C— paralectotype No. 12; D—paralectotype No. 13. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984506/files/figure.png	https://doi.org/10.5281/zenodo.16984506	FIGURE 27. Cytherissa plena Mazepova, 1985, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype no. 31; E–H— paralectotype No. 29. Scale 500 µm.	FIGURE 27. Cytherissa plena Mazepova, 1985, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype no. 31; E–H— paralectotype No. 29. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16984508/files/figure.png	https://doi.org/10.5281/zenodo.16984508	FIGURE 28. Cytherissa plena Mazepova, 1985, SEM photographs of carapaces (A–D) and valves (E–F) of females: A, B— laterally, outer side; C—ventrally; D—dorsally; E—RV with soft parts, inner side; F—LV laterally, inner side; G—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 22; B—paralectotype No. 21; C—paralectotype No. 24; D—paralectotype No. 23; E—paralectotype No. 32; F, G—paralectotype No. 31. Scale 500 µm.	FIGURE 28. Cytherissa plena Mazepova, 1985, SEM photographs of carapaces (A–D) and valves (E–F) of females: A, B— laterally, outer side; C—ventrally; D—dorsally; E—RV with soft parts, inner side; F—LV laterally, inner side; G—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 22; B—paralectotype No. 21; C—paralectotype No. 24; D—paralectotype No. 23; E—paralectotype No. 32; F, G—paralectotype No. 31. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982311/files/figure.png	https://doi.org/10.5281/zenodo.16982311	FIGURE 29. Cytherissa plena Mazepova, 1985, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B— laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 26; B—paralectotype No. 25; C—paralectotype No. 28; D—paralectotype No. 27; E, F— paralectotype No. 29. Scale 500 µm.	FIGURE 29. Cytherissa plena Mazepova, 1985, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B— laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 26; B—paralectotype No. 25; C—paralectotype No. 28; D—paralectotype No. 27; E, F— paralectotype No. 29. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982325/files/figure.png	https://doi.org/10.5281/zenodo.16982325	FIGURE 33. Cytherissa plena Mazepova, 1985 (A, B) and Cytherissa bisetosa Mazepova, 1984 (C, D), SEM photographs of some elements of the carapace structure of females (A, B, D) and males (C): A—dorsal part of LV, laterally; B—anterior part of RV, laterally; C—central part of LV, laterally; D—central part of carapace, ventrally. Arrows point towards the anterior. A—paralectotype No. 21; B—paralectotype No. 22; C—paralectotype No. 12; D—paralectotype No. 11. Scale 100 µm.	FIGURE 33. Cytherissa plena Mazepova, 1985 (A, B) and Cytherissa bisetosa Mazepova, 1984 (C, D), SEM photographs of some elements of the carapace structure of females (A, B, D) and males (C): A—dorsal part of LV, laterally; B—anterior part of RV, laterally; C—central part of LV, laterally; D—central part of carapace, ventrally. Arrows point towards the anterior. A—paralectotype No. 21; B—paralectotype No. 22; C—paralectotype No. 12; D—paralectotype No. 11. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982315/files/figure.png	https://doi.org/10.5281/zenodo.16982315	FIGURE 30. Cytherissa bisetosa Mazepova, 1984, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 16; E–H— paralectotype No. 17. Scale 500 µm.	FIGURE 30. Cytherissa bisetosa Mazepova, 1984, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 16; E–H— paralectotype No. 17. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982317/files/figure.png	https://doi.org/10.5281/zenodo.16982317	FIGURE 31. Cytherissa bisetosa Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 9; B—paralectotype No. 8; C—paralectotype No. 11; D—paralectotype No. 10; E, F—paralectotype No. 16. Scale 500 µm.	FIGURE 31. Cytherissa bisetosa Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 9; B—paralectotype No. 8; C—paralectotype No. 11; D—paralectotype No. 10; E, F—paralectotype No. 16. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982323/files/figure.png	https://doi.org/10.5281/zenodo.16982323	FIGURE 32. Cytherissa bisetosa Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 13; B—paralectotype No. 12; C—paralectotype No. 15; D—paralectotype No. 14; E, F—paralectotype No. 17. Scale 500 µm.	FIGURE 32. Cytherissa bisetosa Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 13; B—paralectotype No. 12; C—paralectotype No. 15; D—paralectotype No. 14; E, F—paralectotype No. 17. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FFB4F139998EF9A65DDCFF08.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982359/files/figure.png	https://doi.org/10.5281/zenodo.16982359	FIGURE 41. SEM photographs of the body (A–D) and geniculate L6 of males (E–H), ventrally (A, D, E, H) and laterally (B, C, F, G): A, E—Cytherissa bisetosa Mazepova, 1984, additional specimen; B, F—Cytherissa cf. burchani Mazepova, 1990; C, D, G, H—Cytherissa sinistrodentata Bronstein, 1930. On A, B, E, F the geniculate L6 is located on the right side of the body, on C, D, G, H—on the left side. The arrow points towards the anterior for all photographs.Abbreviations: Rs—right side; Ls—left side. Scale, µm: A–D—500; E–H—100	FIGURE 41. SEM photographs of the body (A–D) and geniculate L6 of males (E–H), ventrally (A, D, E, H) and laterally (B, C, F, G): A, E—Cytherissa bisetosa Mazepova, 1984, additional specimen; B, F—Cytherissa cf. burchani Mazepova, 1990; C, D, G, H—Cytherissa sinistrodentata Bronstein, 1930. On A, B, E, F the geniculate L6 is located on the right side of the body, on C, D, G, H—on the left side. The arrow points towards the anterior for all photographs.Abbreviations: Rs—right side; Ls—left side. Scale, µm: A–D—500; E–H—100	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982331/files/figure.png	https://doi.org/10.5281/zenodo.16982331	FIGURE 34. Cytherissa sinistra Mazepova, 1984, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 25; E–H— paralectotype No. 26. Scale 500 µm.	FIGURE 34. Cytherissa sinistra Mazepova, 1984, schematic drawings of the valves of females (A–D) and males (E–H), outer (A, B, E, F) and inner (C, D, G, H) sides, laterally. Arrows point towards the anterior. A–D—paralectotype No. 25; E–H— paralectotype No. 26. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982333/files/figure.png	https://doi.org/10.5281/zenodo.16982333	FIGURE 35. Cytherissa sinistra Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 17; C—paralectotype No. 20; D—paralectotype No. 19; E, F—paralectotype No. 25. Scale 500 µm.	FIGURE 35. Cytherissa sinistra Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of females: A, B—laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 18; B—paralectotype No. 17; C—paralectotype No. 20; D—paralectotype No. 19; E, F—paralectotype No. 25. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982337/files/figure.png	https://doi.org/10.5281/zenodo.16982337	FIGURE 36. Cytherissa sinistra Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B— laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 22; B—paralectotype No. 21; C—paralectotype No. 24; D—paralectotype No. 23; E, F— paralectotype No. 26. Scale 500 µm.	FIGURE 36. Cytherissa sinistra Mazepova, 1984, SEM photographs of carapaces (A–D) and valves (E, F) of males: A, B— laterally, outer side; C—ventrally; D—dorsally; E—LV laterally, inner side; F—RV laterally, inner side. Arrows point towards the anterior. A—paralectotype No. 22; B—paralectotype No. 21; C—paralectotype No. 24; D—paralectotype No. 23; E, F— paralectotype No. 26. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982341/files/figure.png	https://doi.org/10.5281/zenodo.16982341	FIGURE 37. Cytherissa sinistra Mazepova, 1984, SEM photographs of some elements of carapace structure of females (A, B, E) and males (C, D): A—central part of RV, laterally; B—pore canals and sensilla; C—central part of the carapace, ventrally; D, E—sensilla and variations in pore canal shape in the ventral part of the carapace. In A, C, arrows point towards the anterior. A, B—paralectotype No. 18; C, D—paralectotype No. 24; E—paralectotype No. 20. Scale, µm: A, C—100; B, D, E—20.	FIGURE 37. Cytherissa sinistra Mazepova, 1984, SEM photographs of some elements of carapace structure of females (A, B, E) and males (C, D): A—central part of RV, laterally; B—pore canals and sensilla; C—central part of the carapace, ventrally; D, E—sensilla and variations in pore canal shape in the ventral part of the carapace. In A, C, arrows point towards the anterior. A, B—paralectotype No. 18; C, D—paralectotype No. 24; E—paralectotype No. 20. Scale, µm: A, C—100; B, D, E—20.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982347/files/figure.png	https://doi.org/10.5281/zenodo.16982347	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	FIGURE 38. Microphotographs of male hemipenes of the studied species: A—Cytherissa glomerata Mazepova, 1990, paralectotype No. 19; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 11; C—Cytherissa derupta Mazepova, 1984, paralectotype No. 11; D—Cytherissa plena Mazepova, 1985, paralectotype No. 29; E—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; F—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26; G— Cytherissa obrutshevi Mazepova, 1990, paralectotype No. 16; H—Cytherissa calva Mazepova, 1990, paralectotype No. 20; I—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; J—Cytherissa sinistra Mazepova, 1984, paralectotype No. 26. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982353/files/figure.png	https://doi.org/10.5281/zenodo.16982353	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	FIGURE 39. Microphotographs of valves of the studied species: A—Cytherissa glomerata Mazepova, 1990; B—Cytherissa dubitabilis (Bronstein, 1947) Mazepova, 1990; C—Cytherissa derupta Mazepova, 1984; D—Cytherissa cytheriformis Bronstein, 1947; E—Cytherissa golyschkinae Mazepova, 1990; F—Cytherissa obrutshevi Mazepova, 1990; G—Cytherissa calva Mazepova, 1990; H—Cytherissa plena Mazepova, 1985; I—Cytherissa bisetosa Mazepova, 1984; J—Cytherissa sinistra Mazepova, 1984. Sex designations for A are as for B–J. Arrows point towards the anterior. Specimens figured are the same as those used to prepare the schematic darwings of the valves. Scale 500 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
03B5D979FF83F122998EFA4A5BCCF8BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/16982357/files/figure.png	https://doi.org/10.5281/zenodo.16982357	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	FIGURE 40. Drawings of non-geniculate L5 (A), L5 endopods (B–F), geniculate L6 (G), endopods of geniculate L6 (H–P) and brush organs(Q–S) ofmales:A,G,Q—Cytherissaglomerata Mazepova,1990,paralectotype No.19;B,H—Cytherissaobrutshevi Mazepova, 1990, paralectotype No. 16; C, K—Cytherissa dubitabilis (Bronstein, 1947) Mazepova 1990, specimen No. 21; D, O—Cytherissa sinistra Mazepova, 1984, paralectotype No. 27; E, N—Cytherissa plena Mazepova, 1985, paralectotype No. 29; F, J—Cytherissa derupta Mazepova, 1984, paralectotypes Nos. 11 (F) and 22 (J); I, S—Cytherissa cytheriformis Bronstein, 1947, specimen No. 20; L—Cytherissa calva Mazepova, 1990, paralectotype No. 20; M, R—Cytherissa bisetosa Mazepova, 1984, paralectotype No. 17; P—Cytherissa golyschkinae Mazepova, 1990, paralectotype No. 26. On A–F, the arrows show clear separation (D, F) and partial fusion (A–C, E) of distal segments of non-geniculate L5. The arrangement of pseudochaetae on A is characteristic of B–F but is not drawn. Scale 100 µm.	2025-08-06	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.		Zenodo	biologists	Alekseeva, Tatyana M.;Krivorotkin, Roman S.;Timoshkin, Oleg A.			
