Kamaka

Jung, Tae Won & Yoon, Seong Myeong, 2015, A new species and new record of the Kamakidae (Crustacea: Amphipoda) from Korea, Zootaxa 3915 (3), pp. 356-374 : 371

Key to worldwide species of the genus Kamaka (in mature male except for K. silvana )

1. Antenna 1 shorter than half of antenna 2................................................................... 2

- Antenna 1 longer than half of antenna 2.................................................................... 3

2. Pereopod 7 stout, dorsal margin of inner rami on uropods 1 and 2 with spines................ K. kuthae Dershavin, 1923

- Pereopod 7 not stout, dorsal margin of inner rami on uropods 1 and 2 without spines....... K. derzharvini Gurjanova, 1951

3. Posteroventral process of propodus on ganthopod 2 enlarged dorsoventrally....................................... 4

- Posteroventral process of propodus on ganthopod 2 not enlarged................................................ 8

4. Peduncular article 2 of antenna 2 with ovoid lamellate appendix......................... K. foliacea Ren & Sha, 2012

- Peduncular article 2 of antenna 2 without ovoid lamellate appendix............................................ 5

5. Posterior margin of basis of pereopod 7 lacking plumose setae............................... K. poppi Bamber, 2003

- Posterior margin of basis of pereopod 7 possessing plumose setae............................................... 6

6. Posterodistal corner of peduncular article 4 on antenna 2 presenting stout protuberance...... K. corophina Ren & Sha, 2012

- Posterodistal corner of peduncular article 4 on antenna 2 without stout protuberance............................... 7

7. Antenna 2, first proximal segment of flagellum with serrate posterior margin........ K. songkhlaensis Ariyama et al., 2010

- Antenna 2, first proximal segment of flagellum normal.......................... K. taditadi Thomas & Barnard, 1991

8. Propodus of gnathopod 2 triangular in shape............................................................... 9

- Propodus of gnathopod 2 subquadrate in shape............................................................. 13

9. Peduncular article 5 and several proximal segments of antenna 2 showing protuberances................ K. rostra sp. nov.

- Peduncular article 5 and several proximal segments of antenna 2 not showing protuberances......................... 10

10. Peduncular article 2 of male antenna 2 with ovoid lamellate appendix.............. K. appendiculata Ariyama et al., 2010

- Peduncular article 2 of male antenna 2 without ovoid lamellate appendix......................................... 11

11. Posterior margin of basis on pereopod 7 lacking plumose setae............................... K. palmata Dang, 1968

- Posterior margin of basis on pereopod 7 possessing plumose setae............................................. 12

12. Pereopods 5–7 with few plumose setae on posterior margin of basis............................ K. biwae Uéno, 1943

- Pereopods 5–7 with many plumose setae on posterior margin of basis....................... K. morrinoi Ariyama, 2007

13. Posterior process of propodus on ganthopod 2 not deep..................................... K. silvana Myers, 2009

- Posterior process of propodus on ganthopod 2 deep......................................................... 14

14. Anterior and posterior margins of propodus on ganthopod 2 parallel........................ K. excavata Ariyama, 2007

- Anterior and posterior margins of propodus on ganthopod 2 not parallel......................................... 15

15. Carpus on pereopod 3 more expanded, width 0.77 times as long as length........................ K. littoralis Ren, 2006

- Carpus on pereopod 3 weakly expanded, width 0.47 times as long as length.................. K. tonlensis Morino, 2012