Journal of the Marine Biological Association of the United Kingdom



A review of the genus Richtersia (Nematoda: Selachinematidae): new species from Golfo San José and Golfo San Matías, Chubut (Argentina)


Catalina T.  Pastor de Ward a1c1 and Virginia  Lo Russo a1
a1 Centro Nacional Patagónico (CONICET), C.C. 128 (9120) Puerto Madryn, Chubut, Argentina

Article author query
pastor de ward ct   [PubMed][Google Scholar] 
lo russo v   [PubMed][Google Scholar] 

Abstract

This article is a review of the genus Richtersia (Nematoda: Selachinematidae) with a key to species, genus diagnosis and lists of valid species. Two new Richtersia species from the Golfo San José and Golfo San Matías, Chubut province of Argentina are described: Richtersia bicornis sp. nov. is characterized by having two thorn structures after cuticular collar, and in total 32–40 longitudinal rows of spines arranged in eight groups in cervical region and precloacal spines similar in shape. Richtersia argentinae sp. nov. is characterized by the number of longitudinal rows of spines, amphid size and the precloacal spines configuration.

(Published Online October 18 2007)
(Received December 14 2006)
(Accepted May 24 2007)


Correspondence:
c1 Corresponding author, e-mail: pastor@cenpat.edu.ar