DARWINULOCOPINA Sohn, 1988

Ma, Shunxin & Yu, Na, 2018, Freshwater ostracods (Crustacea) from Tiantong National Forest Park and Dongqian Lake, eastern China, with descriptions of two new species, Journal of Natural History 52 (27 - 28), pp. 1825-1868 : 1862-1863

Suborder DARWINULOCOPINA Sohn

Superfamily DARWINULOIDEA Brady and Norman Family DARWINULIDAE Brady and Norman

Genus Darwinula Brady and Robertson, 1885

Darwinula stevensoni Brady and Robertson, 1870

( Figure 25a,b )

Polycheles stevensoni sp. nov. Brady and Robertson, 1870: 25, pls. 7 (1–7), 10 (4–14). Darwinula stevensoni comb. nov. Brady and Robertson, 1885: 3.

Darwinula protracta Rome, 1953: 39 , pl. 2.

Darwinula sphenoides Rome and De Decker, 1977: 253 , pl. 5.

Material examined

Two females (ECNU20140911/TT18; ECNU20150418/TT52) dissected.

Dimensions

(Female, n = 3) Length, 0.61–0.70 mm; height, 0.24–0.29 mm; width, 0.29 mm.

Brief description

In dorsal view, RV overlapping LV both anteriorly and posteriorly. In lateral view, posterior end wider than the anterior.

Distribution

This species has been found on all continents, except Antarctica (Karanovic 2012). In China, it has been found in Jiangsu ( Yu et al. 2005), Qinghai ( Yang et al. 2006) and Yunnan ( Huang et al. 1983).

Figures

Figure 25. (a, b) Darwinula stevensoni Brady and Robertson, 1870. Female. (a) ECNU20140911/ TT1801, out view of LV; (b) ECNU20140911/TT1802, dorsal view. (c, d) Vestalenula cornelia Smith et al., 2006. Female. (c) ECNU20150419/TT77, inner view of RV; (d) ECNU20150419/TT7701, ventral view. Scale bars: 100 μm.