Birdotanais, Kakui & Angsupanich, 2012

Kakui, Keiichi & Angsupanich, Saowapa, 2012, Birdotanais Songkhlaensis, A New Genus And Species Of Nototanaidae (Crustacea: Tanaidacea) From Thailand, Raffles Bulletin of Zoology 60 (2), pp. 421-432 : 422

Nototanaidae Sieg, 1976 Birdotanais , new genus

Type species. — Birdotanais songkhlaensis new species, by monotypy

coxa. Pereopod 1 merus with oblique articulation with carpus; dactylus-unguis long; unguis longer than dactylus. Pereopods 2 and 3 with carpus bearing two ventral spiniform setae. Pereopods 4–6 without coxa or clinging apparatus; carpus with two outer and two inner spiniform setae in distal region; propodus with one (on pereopods 4 and 5) or three (on Etymology. — The genus name (masculine) is from Dr. Graham Bird in recognition of his great contributions to the knowledge of Tanaidacea .

Diagnosis. — Cephalothorax strongly dorsoventrally flattened and elongate in males. Eyes present, black. Pereonite 6 with one genital cone in males. Antennule with three articles in females, four articles in males; article 3 shorter than article 2 in females. Antennal article 5 shorter than article 2. Female mandible with incisor and lacinia mobilis facing inward; molar well developed, bearing broad masticatory region with several teeth; left incisor and lacinia mobilis with six and five teeth, respectively. Female maxillular endite with nine spiniform setae. Female maxillipedal bases fused; endites fused, triangular, widest anteriorly (or “flared”), without distal tubercles, each with one subdistal simple seta. Male maxilliped with small, fused endite and simpler 4-articulate palp. Cheliped articulates with cephalothorax via triangular sclerite. Cheliped propodal palm and dactylus smooth on dorsal margin; subchelate in males. Pereopods 1–3 with pereopod 6) long dorsodistal setae, without ventrodistal seta being longer than dactylus-unguis in pereopod 6; dactylusunguis not fused, nearly straight; unguis tiny. Pleopods biramous, in five pairs, all similar in shape; endopod with one mid-inner plumose seta. Uropodal exopod with two articles; article 1 subequal in length to endopodal article 1. Marsupium consists of four pairs of flat oostegites.