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Patagonema iubatum gen. nov. and sp. nov. (Nematoda, Oncholaimidae, Octonchinae) from Patagonia sandy beach (Argentina)

Published online by Cambridge University Press:  07 August 2014

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

Patagonema iubatum gen. nov. sp. nov. is described from a sandy beach at Playa Pozo, Golfo Nuevo, Argentina. It resembles Oncholaimidae (Nematoda: Enoplida) and it is characterized by a buccal cavity comprising a combination of three teeth and three mandibular ridges with small teeth. The new genus is also characterized by the presence of papillose pre-cloacal supplements, cephalated spicula and a gubernaculum with dorsal apophysis and lateral piece, and a new demanian system configuration. Patagonema iubatum sp. nov. has 9–11 papillae-like pre-cloacal supplements, short and cephalated spicula and a gubernaculum with dorsal apophysis and pointed lateral piece. Its position inside Oncholaimidae is discussed.

Keywords

OncholaimidaeOctonchinaemarine NematodaPatagonian coastsPatagonema iubatum gen. nov. sp. nov.systematic
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 95 , Issue 1 , February 2015 , pp. 101 - 109
Copyright
Copyright © Marine Biological Association of the United Kingdom 2014 

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