Tryphosites G.O. Sars, 1891: 91.— Stebbing, 1906: 77.— Chevreux & Fage, 1925: 61.— Schellenberg, 1942: 107.—J.L. Barnard, 1969: 366.— Lincoln, 1979: 80.— Diviacco & Ruffo, 1989: 571.— Barnard & Karaman, 1991: 538.
Type species. Anonyx longipes Bate & Westwood, 1863, original designation.
Included species. Tryphosites includes five species: T. alleni Sexton, 1911; T. chevreuxi Stebbing, 1914; T. colmani sp. nov.; T. longipes (Bate, 1862); T. psittacus sp. nov.
Diagnostic description. Antenna 1 accessory flagellum not forming operculum. Antenna 2 flagellum article 5 slender (with brush setae). Mandibular incisor curved; palp attached midway. Maxilla 1 ST-7 serrate distally with smooth medial margin; ST-D slender, cuspidate along distal half of medial margin. Maxilliped outer plate apical robust setae present. Gnathopod 1 subchelate; coxa large, nearly as long as coxa 2, not tapering; carpus longer than propodus. Pereopod 4 coxa with well-developed posteroventral lobe. Uropod 2 inner ramus constricted. Uropod 3 rami with plumose setae. Telson moderate to deeply cleft.
Distribution. North Atlantic; Pacific Ocean.