FIGURE 4. A–I in Ilyocypris (Crustacea: Ostracoda) species in North East Asian rice fields description of one new species, and redescriptions of Ilyocypris dentifera Sars 1903 and Ilyocypris japonica Okubo, 1990

FIGURE 4. A–I, Ilyocypris japonica Okubo, 1990. A, detail of female antenna (LBM 1430009156, sample 22; see Table 1). B, detail of male antenna (LBM 1430009155, sample 22). C, seventh limb, male (LBM 1430009154, sample 22). D, outline of female reproductive organ, arrow indicates anterior (LBM 1430009157, sample 22). E, hemipenis (LBM 1430009154, sample 22). F, copulatory process of hemipenis (LBM 1430009154, sample 22). G, hemipenis (LBM 1430009148, sample 15). H, copulatory process of hemipenis (LBM 1430009148, sample 15). I, outlines of the hemipenes of six specimens, some reflected on the vertical axis to facilitate comparisons (left to right LBM 1430009153, sample 22; LBM 1430009152, sample 21; LBM 1430009146, sample 15; LBM 1430009145, sample 10; LBM 1430009140, sample 5; LBM 1430009139, sample 3). J & K, Ilyocypris mongolica. J, hemipenis (LBM 1430009161, sample 17). K, copulatory process of hemipenis (LBM 1430009161, sample 17).