Richtersia Steiner, 1916

Revkova, Tatiana N. & Sergeeva, Nelli G., 2024, Free-living marine nematodes of the genus Richtersia Steiner, 1916 (Desmodorida: Richtersiidae) from the Sea of Japan, Zootaxa 5543 (1), pp. 123-134 : 125

publication ID	https://doi.org/ 10.11646/zootaxa.5543.1.7
publication LSID	lsid:zoobank.org:pub:093A5AA0-DAEF-4312-B8D9-897F7A6B779C
DOI	https://doi.org/10.5281/zenodo.14385374
persistent identifier	https://treatment.plazi.org/id/03868796-FF96-FFF3-FF1E-E518EF6DF92B
treatment provided by	Plazi
scientific name	Richtersia Steiner, 1916
status

Treatment

Genus Richtersia Steiner, 1916 View in CoL

Emended diagnosis (based in Gharakhani et al. 2020). Body short and stout, yellow-brownish, from cylindrical to sacciform. Cuticle finely annulated with longitudinal rows of small spines. Anterior sensilla arranged in 6 + 10 pattern, all anterior sensilla setose. Amphidial fovea ventrally coiled, uni- to multispiral, or of any other derived shapes. Broad mouth opening surrounded by six soft lips and a cuticular collar. Buccal cavity nearly cylindroid, with weakly sclerotised walls. Pharynx short, cylindrical, and evenly muscular. Male reproductive system monorchic, with outstretched testis. No precloacal supplements except for modified cuticular spines. Female reproductive system didelphic-amphidelphic. Strictly marine.

Type species: Richtersia collaris Steiner, 1916 View in CoL

Valid species

R. argentinae Pastor de Ward & Lo Russo, 2007 R. bathyalis Soetaert & Vincx, 1987

R. beibuwanensis Fu, Cai, Boucher, Cao & Wu, 2013 R. bicornis Pastor de Ward & Lo Russo, 2007

R. bispinata Gharahkhani, Pourjam, Leduc & Pedram, 2020 R. coifsoa Fu, Cai, Boucher, Cao & Wu, 2013

R. collaris Steiner, 1916

R. coomansi Soetaert & Vincx, 1987

R. deconincki Vincx, 1981

R. demani Schuurmans Stekhoven, 1935

= R. beauforti Chitwood, 1936

R. discorda ( Inglis, 1968) Gerlach & Riemann, 1973

= Richtersiella discorda Inglis, 1968