Typhlotanais G. O. Sars, 1882

Larsen, Kim, Błażewicz-Paszkowycz, Magdalena & Cunha, Marina R., 2006, Tanaidacean (Crustacea: Peracarida) fauna from chemically reduced habitats-the lucky strike hydrothermal vent system, mid-atlantic ridge, Zootaxa 1187, pp. 1-36 : 21

Genus Typhlotanais G. O. Sars, 1882

Diagnosis

Female (modified after G.O. Sars 1882). Body almost completely cylindrical. Cephalothorax wider than pereon. Antennule with three articles. Antenna with five or six articles. Molar broad with several terminal denticles. Maxilliped basis partially fused, endites not fused; distal edge with lateral process. Chelipeds ventrally attached via sclerite. Pereopods 1–3 walking type, with coxae; merus and carpus with simple setae only. Pereopods 4–6 clinging type, with or without coxae, merus and carpus with at least one spiniform seta, usually with clinging process, dactylus and unguis fused. Pleopods present, with simple or plumose setae. Uropods biramous; endopod and exopod with one or two articles.

Remarks

It is the opinion of these authors that the genus Typhlotanais and its most closely allied genera ( Obesutanais , Peraeospinosus , Paratyphlotanais , Typhlotanaoides , and Meromonakantha ), although likely to constitute a monophyletic taxon, are so intermingled and poorly defined that only a thorough phylogenetic analysis can resolve the systematics of this group. Such a systematic revision of the typhlotanaids is currently in preparation (Błaźewicz­Paszkowycz & Bird personal communication). Therefore the diagnosis given above should be considered as only provisional.