Chloeia entypa Chamberlin, 1919

Salazar-Vallejo, Sergio I., 2023, Revision of Chloeia Savigny in Lamarck, 1818 (Annelida, Amphinomidae), Zootaxa 5238 (1), pp. 1-134 : 41

Chloeia entypa Chamberlin, 1919

Chloeia entypa Chamberlin, 1919: 30–31 , Pl. 13, Figs 8 , 9 , Pl. 14, Figs 1 , 2 ; Treadwell 1937: 147; Hartman 1939: 8; Hartman 1940: 205–206, Pl. 32, Figs 14–20 ; Hartman 1959: 131; Fauchald & Reimer 1975: 82; Fauchald, 1977: 11; Barroso & Paiva 2011: 422, Tab. 1; Yánez-Rivera & Salazar-Vallejo 2022: 511 , Fig. 3 (redescr.).

Chloeia pinnata: Monro 1933: 7–8 , Textfig. 3 (non Moore, 1911).

Diagnosis. Chloeia with bipinnate branchiae from chaetiger 4, progressively smaller posteriorly; dorsum colorless; caruncle blunt, pale; notochaetae furcates; neurochaetae furcates.

Remarks. The species was described as having a yellowish dorsum with deep purple dorsal cirri, but it had been for about 30 years in ethanol by time it was studied by Chamberlin (1919). Extensive deep-water studies along Western Mexico ( Fauchald 1972), or in the Gulf of California ( Méndez 2007) were unsuccessful in collecting fresh specimens.

Monro (1933: 7) indicated that the preserved specimens had a middorsal purplish-brown line, and that dorsal cirri were chocolate brown in living specimens. Fauchald & Reimer (1975: 82) indicated a single dorsal longitudinal red brownish band. This middorsal band was not reported by Chamberlin, such that there might be more than one species.

Figures

FIGURE 1. Living specimens of four Philippine species of Chloeia Savigny in Lamarck, 1818. A. C. amphora Horst, 1910, dorsal view. B. C. bemisae sp. n., pink variant, dorsal view. C. Same, reddish and brownish variants, dorsal view. D. C. flava (Pallas, 1766), oblique right dorsal view. E. C. violacea Horst, 1910, oblique left dorsal view (scales not available; photos: Philippe Poppe; © Philippe & Guido Poppe – www.poppe-images.com).

FIGURE 2. Chloeia viridis Schmarda, 1861, non-type specimens (BMNH 1931.6.22.16-18). A. Black form, anterior region, dorsal view. B. Same, chaetigers 10-12, dorsal view (branchiae removed from chaetiger 11). C. Same, posterior region, dorsal view. D. Red form, anterior region, dorsal view. E. Same, chaetigers 12-14, dorsal view (branchiae removed from chaetiger 13). F. Same, posterior region, dorsal view. Scale bars: A, F, 0.9 mm; B, E, 0.7 mm; C, 1 mm; D, 1.2 mm.

FIGURE 3. Chloeia mezianei sp. n., non-type specimen (NHMD 915074). A. Left lateral view. B. Anterior end and pharynx, seen from above. C. Same, right lateral view. Scale bars: A, 1 mm; B, 0.6 mm, C, 0.5 mm.

FIGURE 8. Chloeia amoureuxi sp. n., epitoke (MNHN 860.1). A. Anterior region, dorsal view. B. Anterior end, dorsal view. C. Anterior end, right lateral view. D. Posterior region. Scale bars: A, 1.8 mm; B, 0.5 mm; C, 0.6 mm; D, 1.5 mm.

FIGURE 9. Chloeia amphora Horst, 1910, lectotype (ZMA V.Pol 149.4). A. Oblique dorsal view. B. Anterior region, dorsal view. C. Chaetigers 10-12, dorsal view. D. Chaetiger 3, notochaetae. E. Same, neurochaetal tips. F. Chaetiger 12, notochaetal tips (inset: spur). G. Same, neurochaetal tips. Scale bars: A, 4.2 mm; B, 2.4 mm; C, 0.6 mm; D, 130 μm; E, G, 30 μm; F, 90 μm; H, 1.7 mm.

FIGURE 14. Chloeia bistriata Grube, 1868, neotype (SMF 19403). A. Dorsal view. B. Anterior end, dorsal view, after Methyl green staining. C. Same, posterior region, dorsal view. D. Paraneotype (SMF 30268), anterior end, right lateral view. E. Same, chaetiger 3, notochaetae. F. Same, neurochaetal tips. G. Chaetiger 12, notochaetae (inset: section of denticulate tine). H. Same, neurochaetae. Scale bars: A, 2.5 mm; B, 0.6 mm; C, 0.9 mm; D, 0.5 mm; E, 80 μm; F, 40 μm; G, 100 μm; H, 110 μm.

FIGURE 15. Chloeia boucheti sp. n., holotype (MNHN IA-TYPE 2048). A. Anterior region, dorsal view. B. Anterior end, dorsal view. C. Posterior region, dorsal view. D. Chaetiger 4, notochaetal tips. E. Same, neurochaetal tips. F. Chaetiger 15, notochaetae furcate and harpoon-chaetae. G. Same, neurochaetal tips. H. Paratype (MNHN IA-TYPE 2050), chaetigers 13-16, dorsal view (most chaetae trimmed). Scale bars: A, 1.7 mm; B, 0.6 mm; C, 1.6 mm; D, 140 μm, E, 30 μm; F, 200 μm; G, 40 μm, H, 1.5 mm.

FIGURE 16. Chloeia conspicua Horst, 1910, syntype (RMNH Ver 1246).A. Depressed by glass slide, dorsal view. B. Anterior region, dorsal view. C. Anterior end, dorsal view. D. Chaetigers 13-16, dorsal view (branchiae from chaetiger 14 removed). E. Chaetiger 3, notochaetal tips. F. Same, neurochaetal tips. G. Chaetiger 20, notochaetal tips. H. Chaetiger 16, neurochaetal tips. I. Posterior region, dorsal view. Scale bars: A, 5.2 mm; B, 3.5 mm; C, 1 mm; D, 1.8 mm; E, 40 μm; F, 60 μm; G, 50 μm; H, 45 μm; I, 2.7 mm.

FIGURE 17. Chloeia fauveli sp. n., holotype (MNHN IA-TYPE 2049).A.Anterior region, dorsal view. B. Anterior end, dorsal view, after Methyl green staining. C. Same, right lateral view. C. Chaetigers 12-15, dorsal view, after Methyl Green staining. E. Chaetiger 3, furcate and harpoon notochaetae (inset: tip of harpoon chaetae). F. Same, tips of neurochaetae. G. Chaetiger 14, harpoon notochaetae (inset: tip of harpoon chaetae). H. Same, tips of neurochaetae. Scale bars: A, 2.2 mm; B, 0.7 mm; C. 0.9 mm; D, 1.8 mm; E, 250 μm; F, H, 80 μm; G, 300 μm; I, 2.o mm.

FIGURE 18. Chloeia fiegei sp. n., holotype (SMF 3814). A. Dorsal view. B. Same, anterior region, after Methyl green. C. Anterior end, ventral view. D. Chaetiger 3, notochaetae. E. Same, neurochaetal tips. F. Chaetiger 13, notochaetae (inset: eroded denticulate section). G. Same, neurochaetal tips. H. Posterior region, dorsal view, after Methyl green staining. Scale bars:A, 2.5 mm; B, 1.6 mm; C, 0.4 mm; D, F, 110 μm; E, G, 40 μm; H, 1.6 mm.

FIGURE 19. Chloeia flava (Pallas, 1766), restricted, neotype (MNHN IA-TYPE 247). A. Dorsal view. B. Anterior end, dorsal view. C. Chaetigers 18-19, dorsal view (left branchia previously removed from chaetiger 19). D. Posterior end, dorsal view. Scale bars: A, 9.1 mm; B, 1.5 mm; C. 1.4 mm; D. 1.7 mm.

FIGURE 20. Chloeia flava (Pallas, 1766), restricted, paraneotype (MNHN IA-TYPE 252). A. Dorsal view. B. Anterior end, dorsal view. C. Chaetigers 13-19, dorsal view. Chaetae of neotype (left) and paraneotype (right); D. Chaetiger 3, notochaetae. E. Same, neurochaetae. F. Chaetiger 15, harpoon notochaetal tips. G. Same, neurochaetal tips. H. Paraneotype, posterior region, dorsal view. Scale bars: A, 4 mm; B, 0.8 mm; C. 1.7 mm; D, F, 50 μm; E, 25 μm; G, 40 μm; H, 2.1 mm.