identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
02141C6DA5612166889CFB299EBEFB62.text	02141C6DA5612166889CFB299EBEFB62.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Diaphorocleidus santosclappae Duarte, Meneses, Justo & Cohen 2026	<div><p>Diaphorocleidus santosclappae Duarte, Meneses, Justo &amp; Cohen sp. nov. (Figure 1 and Figure 3A–C)</p><p>urn:lsid:zoobank.org:act: 7C6A5B00-F7BC-4CE7-8564-57EB0FAB9CEF</p><p>Type host: Astyanax taeniatus (Jenyns) ( Characiformes, Characidae)</p><p>Site on host: Gills</p><p>Type locality: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.403336&amp;materialsCitation.latitude=-22.94222" title="Search Plazi for locations around (long -43.403336/lat -22.94222)">Engenho Novo River</a> (22°56'32"S, 43°24'12"W), Fiocruz Mata Atlântica Biological Station, Rio de Janeiro State, Brazil .</p><p>Type material: Holotype CHIOC 41098; Paratypes CHIOC 41099, 41100, 41101, 41102, 41103 .</p><p>Etymology: The species is named after Dr. Michelle Daniele dos Santos-Clapp, from the Universidade Federal Rural do Rio de Janeiro (UFRRJ), in recognition of her contributions to the field of fish parasitology and her career dedicated to fostering the academic background of different students, especially the first author.</p><p>Description (based on eight specimens mounted in Hoyer’s medium and one specimen stained in Gomori’s trichrome): Body fusiform, 381 (330–420; n = 8) long, 94 (71–102; n = 8) wide at the level of the germarium. Cephalic lobes developed, with two bilateral lobes and two terminal lobes. Three bilateral pairs of head organs. Three pairs of cephalic glands posterolaterally to pharynx. Two pairs of eyespots, subspherical, equidistant. Accessory eye granules scattered near the pharynx. Pharynx spherical, 23 (20–25; n = 6) in diameter; esophagus short; two intestinal ceca, confluent posterior to testis, without diverticula. Haptor subhexagonal, 60 (40–71; n = 8) wide. Ventral anchor with well-developed, elongated superficial root, and short deep root with straight base, evenly curved shaft and straight point, 29 (22–31; n = 8) long, base 15 (12–19; n = 8) wide; point not exceeding the superficial root tip. Dorsal anchor with well-developed superficial root rounded at intersection with well-developed deep root, curved shaft and straight point, 27 (21–30; n = 8) long, base 15 (11–18; n = 8) wide; point not exceeding the superficial root tip. Ventral bar V-shaped, with medial suture and slightly expanded ends, 26 (25–28; n = 7) wide. Dorsal bar bow-like shape, with medial expansion and slightly bent ends, 29 (25–31; n = 7) wide. Hooks similar in size and shape, each with two subunits, proximal subunits expanded, rounded base, long shank, rounded, depressed thumb, evenly curved shaft and short point, 19 (13–26; n = 56) long. Filamentous hook (FH) loop almost 40% of total shank length. Testis ovate, dorsal and slightly overlapped by germarium, 28 (22–37; n = 6) long and 17 (10–25; n = 6) wide. Vas deferens looping left intestinal cecum. Seminal vesicle large, fusiform, a dilatation of vas deferens. Prostatic reservoir saccate, lying ventral to seminal vesicle. Male copulatory organ (MCO) formed by a sclerotized tube with 2 ½ counterclockwise rings with 94 (82–100; n = 8) in length, diameter of the first ring 13 (11–15; n = 8), base possessing two circular flanges. Accessory piece rod-shaped, 21 (18–22; n = 8) long, with a lateral projection at the proximal end and a cap-like structure at the distal end, serving as a guide to the MCO. Vagina sub-medial, funnel-shaped, with an aperture with a rugose aspect; vaginal canal sclerotized, looping on itself. Seminal receptacle rounded. Germarium fusiform, 46 (40–56; n = 5) long and 24 (18–28; n = 5) wide. Mehlis’ gland, oviduct, ootype, and uterus not observed. Vitelline follicles extending from the pharynx and surpassing the confluence of the intestinal ceca.</p><p>Remarks: Diaphorocleidus santosclappae sp. nov. is assigned to the genus by the combination of the following characters: (1) an unarticulated MCO and accessory piece; (2) a coiled MCO with counterclockwise rings; (3) a vaginal pore near body mid-length; (4) sclerotized, tubular vagina; (5) seven pairs of hooks comprised two subunits, proximal subunit expanded. The new species differs from the other species of Diaphorocleidus in the position of the sub-medial vaginal aperture and by this structure presenting a rugous aspect. Diaphorocleidus santosclappae sp. nov. resembles Diaphorocleidus forcipiformis Silva, Meneses, Cohen &amp; Justo, 2024, Diaphorocleidus magnus Zago, Franceschini, Abdallah, Müller, Azevedo &amp; Silva, 2021 and Diaphorocleidus radius Carvalho, Diniz, Sousa &amp; Yamada, 2026 in the morphology of MCO, which comprises a sclerotized tube of 2 ½ counterclockwise rings. However, Diaphorocleidus santosclappae sp. nov. differs from those species by the accessory piece non-subdivided, comprising a rod-like structure with a lateral projection at its proximal end and a cap-like ornamentation at its distal end, while in those species the accessory piece is composed by two subunits; in D. forcipiformis the accessory piece is represented as a claw-shaped structure; in D. radius it is represented as a sclerotized structure articulated with the MCO, claw-shaped; in D. magnus it comprises a wrench-shaped piece. Diaphorocleidus machacae Mendoza-Franco, Caspeta-Mandujano &amp; Ramírez-Martínez, 2019 also exhibits a non-subdivided rod-shaped accessory piece, but differs from D. santosclappae sp. nov. for not presenting a lateral projection nor a terminal cap-like ornamentation in this structure. The new species also differs from D. forcipiformis, D. machacae, D. magnus, and D. radius by presenting ventral and dorsal anchors of almost the same size, while in those species the ventral anchor is bigger than the dorsal anchor.</p></div>	https://treatment.plazi.org/id/02141C6DA5612166889CFB299EBEFB62	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Duarte, Rayane;Meneses, Yuri C.;Freire, Robertta G.;Justo, Marcia C. N.;Cohen, Simone C.	Duarte, Rayane, Meneses, Yuri C., Freire, Robertta G., Justo, Marcia C. N., Cohen, Simone C. (2026): Two new species of Dactylogyridae (Platyhelminthes: Monopisthocotyla) parasitizing Astyanax taeniatus (Characiformes: Characidae) from the Fiocruz Mata Atlântica Biological Station, Rio de Janeiro, Brazil. Zootaxa 5849 (2): 199-212, DOI: 10.11646/zootaxa.5849.2.4, URL: https://doi.org/10.11646/zootaxa.5849.2.4
02141C6DA5632168889CFAC39C43FC18.text	02141C6DA5632168889CFAC39C43FC18.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Jainus mataatlanticaensis Duarte, Meneses, Justo & Cohen 2026	<div><p>Jainus mataatlanticaensis Duarte, Meneses, Justo &amp; Cohen sp. nov. (Figure 2 and Figure 3D–F)</p><p>urn:lsid:zoobank.org:act: E19DDCF4-2740-476E-AC6F-D4BB6817DB4A</p><p>Type host: Astyanax taeniatus (Jenyns) ( Characiformes, Characidae)</p><p>Site on host: Gills</p><p>Type locality: <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=-43.403336&amp;materialsCitation.latitude=-22.94222" title="Search Plazi for locations around (long -43.403336/lat -22.94222)">Engenho Novo River</a> (22°56'32"S, 43°24'12"W), Fiocruz Mata Atlântica Biological Station, Rio de Janeiro State, Brazil .</p><p>Type material: Holotype CHIOC 41104; Paratypes CHIOC 41105 a-c, 41106 a-c, 41107 a-b, 41108 .</p><p>Etymology: The name of the species is in honor of the Brazilian Atlantic Forest biome, one of the most diverse tropical forests on Earth.</p><p>Description (based on 11 specimens mounted in Hoyer’s medium and two specimens stained in Gomori’s trichrome): Body fusiform, 412 (313–505; n = 11) in length, greatest width 132 (80–230; n = 11) at the level of germarium. Cephalic region poorly developed, with inconspicuous lobes. Three pairs of head organs; cephalic glands not observed. Three pairs of eyespots, subcircular, anterior pair smaller than posterior pair; in some specimens the third pair is not seen. Pharynx spherical, 23 (18–27; n = 7) in diameter; esophagus short; two intestinal ceca, confluent posteriorly to testis. Haptor subcircular, 58 (33–71; n = 9) wide. Ventral anchor with beak-like superficial root and well-developed deep root, tip truncate, slightly curved shaft and short point, 16 (10–18; n = 10) long, base 9 (7–11; n = 10) wide; point not exceeding the superficial root tip. Dorsal anchor with well developed, elongated superficial root and short deep root, curved shaft and slightly curved point, 24 (22–30; n = 10) long, base 16 (14–19; n = 10) wide; point not exceeding the superficial root tip. Ventral bar trident-shaped, with long anteromedial and posteromedial projections, posteromedial projection with fan-like base, 13 (8–16; n = 8) wide. Dorsal bar rod-shaped, 22 (18–24; n = 8) wide. Hook pairs slightly dissimilar in shape of bulbous base, dissimilar in size; pairs 1 and 5 with a discrete bulbous base, remaining pairs with expanded bulbous base; all hook pairs with slender shank, upright thumb, slightly curved shaft and short point. Pairs 1 and 5, 9 (8–10; n = 11) long; pairs 2–4 and 6–7, 12 (9–17; n = 32) long. Filamentous hook (FH) loop almost entire length of the shank. Testis ovate, 22 and 31 long, and 21 and 27 wide. Vas deferens looping left intestinal cecum. Seminal vesicle a dilatation of vas deferens, fusiform. Prostatic reservoir saccate. MCO consisting of a sinuous tube with a base composed of flanges, 27 (25–30; n = 10) in length. Accessory piece pear-shaped, formed by two thin, lateral borders attached by a thin membrane wall, with two apertures at the proximal end, serving as guide to MCO, 25 (21–29; n = 11) long. Germarium fusiform, 52 and 54 long, 26 and 32 wide. Oviduct, Mehlis’ gland, ootype not observed. Uterus delicate. Egg oval, operculated, with a small polar node, 46 and 50 long, and 30 and 38 wide. Seminal receptacle rounded. Vaginal aperture sinistroventral, sclerotized, fin-shaped. Vitelline follicles extending from the level of the pharynx and exceeding the confluence of the intestinal ceca.</p><p>Remarks: Jainus mataatlanticaensis sp. nov. is assigned to the genus by the combination of the following traits: (1) non-articulated MCO and accessory piece; (2) sinistral vagina; (3) ventral anchor with elongate, rod-like deep root and flattened superficial root; (4) dorsal anchor base bifurcate with well-developed superficial and deep roots. Jainus mataatlanticaensis sp. nov. can be distinguished from other congeners by possessing a well-defined trident-shaped ventral bar. Jainus hexops Kritsky &amp; Leiby, 1972 is the only species that possesses a ventral bar resembling a trident-shaped structure, but it cannot be characterized as that in the new species. Jainus mataatlanticaensis sp. nov. also resembles J. hexops in the morphology of MCO, which is represented as a wavy tube, and by the presence of three pairs of eyespots, observed in some specimens of the present study, but differs from J. hexops by having a pear-shaped accessory piece with membranous wall and sclerotized edges, while the latter species exhibits a U-shaped accessory piece. In addition, Jainus mataatlanticaensis sp. nov. differs from J. hexops by having hook pairs similar in shape, with hook pairs 1 and 5 slightly different from the other pairs, while the previously described species presents hook pairs notably dissimilar in shape.</p></div>	https://treatment.plazi.org/id/02141C6DA5632168889CFAC39C43FC18	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Duarte, Rayane;Meneses, Yuri C.;Freire, Robertta G.;Justo, Marcia C. N.;Cohen, Simone C.	Duarte, Rayane, Meneses, Yuri C., Freire, Robertta G., Justo, Marcia C. N., Cohen, Simone C. (2026): Two new species of Dactylogyridae (Platyhelminthes: Monopisthocotyla) parasitizing Astyanax taeniatus (Characiformes: Characidae) from the Fiocruz Mata Atlântica Biological Station, Rio de Janeiro, Brazil. Zootaxa 5849 (2): 199-212, DOI: 10.11646/zootaxa.5849.2.4, URL: https://doi.org/10.11646/zootaxa.5849.2.4
