Tanaidacea: Families

Kim Larsen

Nototanaidae Sieg, 1976 Noto.rtf.

Nototanaidae Sieg, 1976: 185.

Nototanaididae Larsen & Wilson, 2002.

Description. Body shape cylindrical. Head, eye present. Antennule (antenna 1) uniramous, with four to five articles. Antenna (antenna 2), with 5 or 6 articles; squama absent. Mouthparts reduced in males. Mandible, palp absent; lacina mobilis only on left mandible; setal row absent; molar broad, or pointed. Labium with one pair of lobes, not articulated. Maxillule (maxilla 1), with one endite; palp uniarticulated, palp with two terminal setae. Maxilla (maxilla 2) reduced. Maxilliped, coxa absent; basis fused; endites fused or not fused, narrower than basis. Epignath small, falciform, uniarticulated, with few setae at apex or completely smooth.

Pereonite 1 not reduced, at least three times wider than pereopod basis diameter. Cheliped, attachment via sidepiece (sclerite), or via pseudocoxa on ventral cephalothorax surface; exopod absent; carpus with few or no long plumose setae. Pereopods 1 to 3, coxae present, or absent. Pereopod 1, without plumose setae on distal articles; coxa not extended into acute spine; ischium present; dactylus long, curved with spinning glands at tip. Pereopod 4 as long as pereopods 5 and 6, dactylus not reduced. Pereopods 4 to 6, coxa present, or absent; dactylus and terminal seta fused. Marsupium formed by four 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 two articles; exopod with two articles, or with one article.

Generic composition. Bathytanaissus Bird & Holdich, 1989; Metatanais Shiino, 1952; Nesotanais Shiino, 1968; Nototanais Richardson, 1906; Paratyphlotanais Kudinova-Pasternak & Pasternak, 1978; Peraeospinosus Sieg, 1986; Protanaissus Sieg, 1983; Tanaissus Norman & Scott, 1906; Teleotanais Lang, 1956. Typhlotanais G.O. Sars, 1882. Typhlotanoides Sieg, 1983.

Remarks. Remarks. Mostly found in shallow water. Only one species found in deep water.

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