Tanaidacea: Families

Kim Larsen


Gigantapseudidae Kudinova-Pasternak, 1978

Gigantapseudidae Kudinova-Pasternak, 1978: 1151.

Description. Body shape semicylindrical, dorsoventrally flattened. Head, eye absent. Antennule (antenna 1) biramous. Antenna (antenna 2), with more than 6 articles; squama present. Mouthparts well developed, functional in both sexes. Mandible, palp present, comprised of three articles; lacina mobilis on both right and left mandible; setal row present; molar broad. Labium with one pair of lobes, articulated. Maxillule (maxilla 1), with two endites; palp biarticulated, palp with more than two setae. Maxilla (maxilla 2) well developed. Maxilliped, coxa present; basis not fused; endites not fused, narrower than basis. Epignath large, reniform, with two unevenly sized articles.

Pereonite 1 not reduced, at least three times wider than pereopod basis diameter. Cheliped, attachment directly to ventral cephalothorax surface; exopod present; carpus with few or no long plumose setae. Pereopods 1 to 3, coxae present. Pereopod 1, without plumose setae on distal articles; coxa not extended into acute spine; ischium present; dactylus long, straight. Pereopod 4 shorter than pereopods 5 and 6, dactylus reduced. Pereopods 4 to 6, coxa present; dactylus and terminal seta not fused. Marsupium formed by five pairs of oostegites.

Pleon with five developed pleonites. Pleopods biramous; male pleopods well developed; female pleopods well developed. Uropods present; protopod without curved spiniform process; endopod with more than six articles; exopod with more than two articles.

Generic composition. Gigantapseudes Kudinova-Pasternak, 1978a.

Remarks. Remarks. Consist of two species only. Deep-sea family.



Cite this publication as: 'Larsen, K. (2002 onwards). Tanaidacea: Families. Version 1: 2 October 2002. http://crustacea.net'.