Heterophoxus Shoemaker 1925
- Dataset
- A novel species of Heterophoxus Shoemaker, 1925 (Crustacea, Amphipoda, Phoxocephalidae) from southeast and southern Brazil, with an identification key to world species of the genus
- Rank
- GENUS
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Malacostraca
- order
- Amphipoda
- family
- Phoxocephalidae
- genus
- Heterophoxus
Heterophoxus Shoemaker 1925
Identification key to species of Heterophoxus of the world
1. Epimeral plate 3, posteroventral corner with an acute projection.................................................... 3
– Epimeral plate 3, posteroventral corner without projection............................................................. 2
2. Uropod 1, rami subequal................................................................................ H. opus Griffiths, 1975
– Uropod 1, outer ramus much shorter than inner............................... H. cephalodens Griffiths, 1975
3. Epimeral plate 3, acute projection medium to long.......................................................................... 4
– Epimeral plate 3, acute projection short............................................. H. videns K.H. Barnard, 1930
4. Pereopod 7, basis reaching apex of merus........................................................................................ 5
– Pereopod 7, basis not reaching apex of merus.................................................................................. 7
5. Uropod 1, rami subequal................................................................................................................... 6
– Uropod 1, inner ramus about twice the length of outer.... H. pellusidus Ren in Ren & Huang, 1991
6. Uropod 2, peduncle longer than inner ramus........................ H. ophthalmicus (Schellenberg, 1925)
– Uropod 2, peduncle shorter than inner ramus................................ H. ellisi Jarret & Bousfield, 1994
7. Antenna 2, article 4 without posteroproximal lobe.......................................................................... 8
– Antenna 2, article 4 with posteroproximal lobe.......................................... H. despard Alonso, 2012
8. Pereopod 4, coxa, posterodorsal margin with moderate to strong excavation................................. 9
– Pereopod 4, coxa, posterodorsal margin with weak excavation........ H. pennatus Shoemaker, 1925
9. Epimeral plates 1–3, posterior margin without setules................................................................... 10
– Epimeral plates 1–3, posterior margin covered with setules......................... H. shoemakeri sp. nov.
10. Pereopod 7, merus stout, posterodistal lobe produced................... H. trichosus K.H. Barnard, 1932
– Pereopod 7, merus slender, posterodistal lobe not produced................. H. oculatus (Holmes, 1908)