Triparatanais Bamber & Chatterjee, 2010

Bird, Graham J., 2019, Tanaidacea (Crustacea: Peracarida) from the Southern French Polynesia Expedition, 2014. I. Tanaidomorpha, Zootaxa 4548 (1), pp. 1-75 : 40

Triparatanais Bamber & Chatterjee, 2010

Diagnosis. Modified from Bamber & Chatterjee (2010). Female. Paratanaidin, with eyes present. Pereonites all shorter than broad. Pleonites 1–4 epimera with simple seta and thick circumplumose seta. Antennule of three longer articles with or without minute distal article, article-1 with incomplete division, distal article with eccentric distal tip (apical spur). Antenna article-2 without ventral expansion or distal seta-bearing apophyses. Mandible left molar apex cleft or uncleft. Maxillule endite with nine terminal spines (some hooked). Maxilliped endites with round or incisor-shaped distal tubercles. Cheliped palm with slender distolateral spine adjacent to fixed finger; dactylus with or without slender ventral spines. Pereopod-1 basis with or without superior seta. Pereopods 2–3 carpus inferodistal crotchets molariform or longer than broad, unequal. Pereopods 4–6 coxa simple; merus with one or two inferodistal crotchets (one molariform in T. meios ); carpus with paired inferior spinulate ridges, one superodistal seta and two or four distal crotchets, one molariform. Uropod peduncle shorter than endopod; endopod two-segmented; exopod one-segmented, shorter than segment-1 of endopod.

Male. Unknown.

Remarks. Although with an extensive diagnosis, the defining character of Triparatanais is the partiallydivided antennule article-1 (see also Bamber & Chatterjee 2010: 22), unlike the fully-fused article of Periparatanais . Useful features are the relatively short cheliped fixed finger/dactylus in relation to the palm and presence of molariform crotchets on the merus ( T. meios Bamber & Chatterjee, 2010 ) and carpus of pereopods 4–6.