Philomedes

Chavtur, Vladimir G. & Keyser, Dietmar, 2016, Benthic myodocopid Ostracoda (Philomedidae) from the Southern Ocean, Zootaxa 4141 (1), pp. 1-70 : 65

Philomedes spp. indet.

Material studied (coordinates, depth and bottom see Appendix). 13th Soviet (Russian) Antarctic Expedition station 3, samples 2 and 3: 2 juveniles.

Station 30, sample 68: juvenile.

16th Soviet (Russian) Antarctic Expedition Davis Sea, Haswell Island: juvenile.

52th Russian Antarctic Expedition, Prydz Bay, station 12, sample 64: juvenile.

Bathymetrical distribution. The Antarctic shelf is inhabited by 9 philomedid species: P. c h a rc o t i, P. orbicularis , P. assimilis , S. gallardoi (all from 10–15 m and deeper), P. rotunda , A. dithrix , S. appelloefi (all from 60–70 m), S. tuberculata sp. nov. and P. heptathrix (both from 200–250 m) ( Fig. 41 ). The lower depth limit for P. charcoti and A. dithrix is 100–150 m and 200–250 m for P. rotunda and S. appelloefi . The lower part of the shelf is inhabited by P. orbicularis , P. assimilis , P. heptathrix , S. gallerdoi and S. tuberculata . In the bathyal zone are found P. assimilis , P. tetrathrix , S. gallardoi and S. tuberculata , while the only philomedid species currently known from the abyssal zone are P. tetrathrix and I. walleni .

Figures

FIGURE 41. Vertical distribution of species of the family Philomedidae in the Antarctic area and adjacent waters from literature and original data.