Zosime Boeck, 1873

Kim, Jong Guk, Jung, Tae Won & Yoon, Seong Myeong, 2016, A new species of Zosime (Copepoda: Harpacticoida: Zosimeidae) from shallow subtidal habitats in Korea, with notes on the genus, Zootaxa 4136 (2), pp. 323-334 : 333

Key to species of the genus Zosime Boeck, 1873 (females only)

1. A1 8-segmented................................................ ( anneae -group) Z. anneae Koller & George, 2011

- A1 6- or 7-segmented................................................................................. 2

2. P5 exopod with 4 marginal setae; caudal rami as long as wide................................. ( incrassata -group)...3

- P5 exopod with 3 marginal and 1 surface setae; caudal rami longer than wide........................ ( typica -group)...5

3. P5 endopodal lobe with 4 setae........................................................... Z. reyssi Dinet, 1974

- P5 endopodal lobe with 3 setae.......................................................................... 4

4. A2 exopod, terminal segment with 2 setae............................................... Z. incrassata Sars, 1910

- A2 exopod, terminal segment with 3 setae.............................................. Z. bathybia Bodin, 1968

5. Caudal rami at least 2.5 times as long as greatest wide....................................................... 6

- Caudal rami less than 2.5 times as long as greatest wide...................................................... 12

6. P1 enp-2 with 3 setae/spines............................................................................. 7

- P1 enp-2 with 4 setae/spines............................................................................ 9

7. P1 exp-3 with 6 setae/spines; P5 endopodal lobe with 3 setae........................... Z. bergensis Drzycimski, 1968

- P1 exp-3 with 5 setae/spines; P5 endopodal lobe with 4 setae................................................... 8

8. Caudal rami about 3 times as long as wide.............................................. Z. paramajor Bodin, 1968

- Caudal rami 4 times as long as wide..................................................... Z. erythraea Por, 1967

9. A1 7-segmented....................................................... Z. paratypica Becker & Schriever, 1979

- A1 6-segmented...................................................................................... 10

10. P5 endopodal lobe with 4 setae............................................................ Z. major Sars, 1919

- P5 endopodal lobe with 3 setae......................................................................... 11

11. Caudal rami about 3 times as long as wide; pseudoperculum on pre-anal somite ornamented with large protrusions............................................................................................. Z. gisleni Lang, 1948

- Caudal rami about 2.5 times as long as wide; pseudoperculum on pre-anal somite ornamented with small protrusions.......................................................................................... Z. typica Boeck, 1873

12. P1 enp-2 with 4 setae/spines........................................................... Z. pacifica Fiers, 1991

- P1 enp-2 with 3 setae/spines............................................................................ 13

13. P5 endopodal lobe with 4 setae......................................................................... 14

- P5 endopodal lobe with 2 setae......................................................................... 16

14. P2–P4, exp-3 with 6 setae/spines; P4 enp-3 with 3 setae/spines................................ Z. bathyalis Por, 1967

- P2–P4, exp-3 with 7 setae/spines, respectively; P4 enp-3 with 4 setae/spines..................................... 15

15. A1 7-segmented.................................................................. Z. atlantica Bodin, 1968

- A1 6-segmented................................................................. Z. mediterranea Lang, 1948

16. A1 7-segmented; P4 enp-3 with 4 setae/spines................................................ Z. valida Sars, 1919

- A1 6-segmented; P4 enp-3 with 3 setae/spines................................................ Z. destituta sp. nov.