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Distribution of Diplolaimella and Diplolaimelloides species from Patagonian lagoons and coastal waters (Nematoda: Monhysteridae), Chubut and Santa Cruz provinces (Argentina)

Published online by Cambridge University Press:  30 June 2009

Catalina T. Pastor de Ward  and
Virginia Lo Russo
Catalina T. Pastor de Ward*
Affiliation:
Centro Nacional Patagónico (CONICET), CC 128 (9120) Puerto Madryn, Chubut, Argentina
Virginia Lo Russo
Affiliation:
Centro Nacional Patagónico (CONICET), CC 128 (9120) Puerto Madryn, Chubut, Argentina
*
Correspondence should be addressed to: C.T. Pastor de Ward, Centro Nacional Patagónico (CONICET), CC 128 (9120) Puerto Madryn, Chubut, Argentina email: pastor@cenpat.edu.ar
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Abstract

This paper focuses on Diplolaimella and Diplolaimelloides two very cosmopolitan genera inhabiting lotic freshwater to salty water inland, groundwater and coastal waters systems, providing a review of their taxonomy with new keys, and their distribution on the east coast of Patagonia and inland Patagonia. Two new species belonging to the genus Diplolaimelloides of the family Monhysteridae are described from Patagonian salty lagoons and coastal areas, and the Chubut and Santa Cruz provinces of Argentina: Diplolaimelloides tehuelchus sp. nov. has four bursal and three postcloacal papillae, short gubernaculum, and spicules longer than 50 μm; it has been found in Patagonian salty lagoons and in high coastal salt marsh areas. Diplolaimelloides warwicki sp. nov. is characterized by the angular shape of the spicules and the long gubernaculum. Diplolaimella ocellata is recorded for the first time in Patagonian salty lagoons and new localities in coastal waters are recorded for Diplolaimella gerlachi Pastor de Ward, 1984.

Keywords

Monhysteridaetaxonomyrevisionsystematicskey to speciesDiplolaimellaDiplolaimelloidesNematodaPatagonian inland lagoons and coastal watersD. tehuelchusD. warwickitaxonomy
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 89 , Issue 4 , June 2009 , pp. 711 - 718
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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