Dolerocypris ikeyai Smith and Kamiya, 2006

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 : 1848

Dolerocypris ikeyai Smith and Kamiya, 2006

( Figure 16a,b )

Dolerocypris ikeyai sp. nov. Smith and Kamiya, 2006: 333, fig. 2(a–e), 4, 5.

Material examined

Two females (ECNU20140911/TT05; ECNU20150418/TT41) dissected.

Dimensions

(Female, n = 3) Length, 1.07–1.20 mm; height, 0.36–044 mm; width, 0.38 mm.

Brief description

Female, carapace long. Height and width less than half length of carapace, both maximum height and width at mid-length. In dorsal view, RV overlapping LV anteriorly and posteriorly. Inner lamella very wide both anteriorly and posteriorly. RV with narrow selvage anteriorly and posteriorly, and the selvage of LV missing. Natatory setae on A2 short, not reaching middle of penultimate segment. Five short natatory setae equal in length. Both claws on UR with well-developed denticles. Seta Sa shorter than claw Ga. Seta Sp hirsute. UR attachment simple.

Distribution

This species has been reported from Japan (Smith and Kamiya 2006; Smith et al. 2011; Tanaka et al. 2015) and South Korea ( Chang et al. 2012; Smith et al. 2015). It is a new record for China.

Figures

Figure 16. (a, b) Dolerocypris ikeyai Smith and Kamiya, 2006. Female. (a) ECNU20140911/TT05, external view of LV; (b) ECNU20140911/TT05, internal view of RV. (c, d) Dolerocypris sinensis Sars, 1903. Female. (c) ECNU20140907/TT01, external view of LV; (d) ECNU20140907/TT01, internal view of RV. Scale bars: 100 μm.