Darwinula Brady and Robertson, 1885 Darwinula stevensoni Brady and Robertson, 1870 Polycheles stevensoni Brady and Robertson, 1870: 25 Darwinula stevensoni Brady and Robertson, 1885: 3 Darwinula protracta Rome, 1953: 39 Darwinula sphenoides Rome and De Decker, 1977: 253 Freshwater ostracods (Crustacea) from Tiantong National Forest Park and Dongqian Lake, eastern China, with descriptions of two new species Ma, Shunxin Yu, Na Journal of Natural History 2018 2018-07-27 52 27 - 28 1825 1868 84JRV Sohn Sohn 1988 [552,880,521,546] Ostracoda Animalia Podocopida 38 1862 Arthropoda subOrder Darwinulocopina  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).