Tryphosa Boeck 1871
- Dataset
- The Tryphosa group (Crustacea: Amphipoda: Lysianassoidea: Lysianassidae: Tryphosinae)
- Rank
- GENUS
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Malacostraca
- order
- Amphipoda
- family
- Lysianassidae
- genus
- Tryphosa
Tryphosa Boeck 1871
Key to genera
1. Gnathopod 1 parachelate................................................................................ 2
- Gnathopod 1 subchelate................................................................................ 3
2. Gnathopod 1 coxa large, nearly as long as coxa 2, not tapering........................................ Glorieusella
- Gnathopod 1 coxa vestigial................................................................... Metambasia
3. Gnathopod 1 coxa large, nearly as long as coxa 2, not tapering................................................ 4
- Gnathopod 1 coxa tapering............................................................................. 5
- Gnathopod 1 coxa vestigial............................................................................ 6
4. Mandible molar a triturating, strongly-developed column. Uropod 3 inner ramus slender, distinctly shorter than article 1 of outer ramus, subequal in length to peduncle.......................................................... Bruunosa
- Mandible molar a triturating, reduced column. Uropod 3 inner ramus broad, subequal in length to article 1 of outer ramus, distinctly longer than peduncle...................................................................... Tryphosa
5. Antenna 2 peduncle article 3 enlarged in male. Gnathopod 1 carpus slightly longer than propodus............ Thrombasia
- Antenna 2 peduncle article 3 not enlarged in male. Gnathopod 1 carpus shorter than propodus................. Gronella
6. Gnathopod 1 strongly subchelate; carpus slightly to strongly shorter than propodus; palm transverse to slightly obtuse, convex. Uropod 3 rami without plumose setae.......................................................... Pseudonesimus
- Gnathopod 1 subchelate; carpus slightly longer than propodus; palm acute, straight to concave. Uropod 3 rami with plumose setae in male................................................................................ Schisturella