Kamaka

Ren, Xian-Qiu & Sha, Zhong-Li, 2013, Two new species and one newly recorded species of the genus Kamaka (Crustacea: Amphipoda) from the Hainan Province, South China Sea, Zootaxa 3630 (2), pp. 391-399 : 392

Key to species of Kamaka from the Hainan Province, South China Sea (based on males only)

1. Segment 2 of antenna 2 with a marginal serrate lobe, palmar part of gnathopod 2 narrow and long, with reversed hook shaped tooth of palmar angle...................................................................... K. foliacea sp. n.

- Segment 2 of antenna 2 without a lobe, palmar part of gnathopod 2 rather wide and short, without reversed hook shaped tooth of palmar angle....................................................................................... 2

2. Article 4 of antenna 2 stout, ventrodistal margin of peduncular article 4 with a robust tooth............ K. corophina sp. n.

- Article 4 of antenna 2 not stout, ventrodistal margin of peduncular article 4 without a robust tooth...................... 3

3. Coxa 2 broad, subequal to coxa 1 in length, palmar part of gnathopod 2 rather wide........................ K. excavata

- Coxa 2 rather narrow, shorter than length of coxa 1, palmar terminal part of gnathopod 2 narrow....................... 4

4. Propodus of gnathopod 2 narrow, without latero-distal tooth of palmar margin, dactylus beyond palmar latero-distal tooth................................................................................................. K. biwae

- Propodus of gnathopod 2 wide, with latero-distal tooth of palmar marigin, dactylus not beyond palmar latero-distal tooth................................................................................................ K. littoralis