Hemicypris anomala ( Klie, 1938 )

Ma, Shunxin & Yu, Na, 2020, Freshwater ostracods (Crustacea) from Hainan Island, southern China, with description of a new species, Zootaxa 4767 (2), pp. 201-243 : 224-225

Hemicypris anomala ( Klie, 1938)

Figures 17–18 .

1938b Heterocypris anomala n. sp. — Klie: 23 –28, Abb. 1–7.

1974 Hemicypris anomala (Klie) — Purper & Würdig-Maciel: 73. Material examined: Five females from QH2, one female (ECNU20170418/HN06) dissected; five females and five female valves from WC3, two females (ECNU20170419/HN07–08) dissected.

Dimension: Female, RV, n = 3, length 0.749 –0.915 mm, height 0.402 –0.554 mm; LV, n = 4, length 0.723 –0.869 mm, height 0.426 –0.519 mm.

Description: In dorsal view, RV overlapping LV anteriorly, ventrally and dorsally ( Fig. 17A ). In lateral view, carapace sub-elliptical. Surface of valves mostly smooth, but LV with area of small pits near anterior margin ( Fig. 17B ). Greatest height at mid-length. Calcified inner lamella anteriorly wide. Marginal denticles present along anterior and postero-ventral margins of LV ( Fig. 17D ). Marginal sockets present on anterior and postero-ventral part of RV ( Fig. 17C ). Natatory setae on A2 long, exceeding tips of terminal claws. Terminal segment of Mx palp spatulalike, and one tooth-bristle on third endite smooth, other with denticles ( Fig. 18A ). L6 five-segmented, only d1 seta present on basal segment ( Fig. 18C ). Claw Gp on UR approximately 3/4 length of claw Ga; Seta Sp slightly shorter than claw Gp; Seta Sa shorter than 1/2 length of claw Ga ( Fig. 18B ). UR attachment simple, and ventral branch well-developed.

Distribution: This species has been found in Malaysia, the Philippines ( Victor & Fernando 1981d), India ( Victor & Fernando 1979b; Patil & Talmale 2005; Karuthapandi et al. 2014) and provinces in China: Taiwan ( Klie 1938b) and Sichuan ( Huang 1986). This species was found in Qionghai and Wenchang on Hainan Island.

Figures

FIGURE 17. Hemicypris anomala (Klie, 1938b). Female.A, ECNU20170419/HN2-38, oblique dorsal view, anterior to the left; B, ECNU20170419/HN2-38, oblique dorsal anterior view; C, internal view of RV; D, ECNU20170418/HN06, external view of LV. Scale bars: 100 μm.

FIGURE 18. Hemicypris anomala (Klie, 1938b). Female. ECNU20170419/HN07. A, Mx; B, UR; C, L6. Scale bars: 100 μm.