Cyclocypridinae Kaufmann 1900

Key to genera of the subfamily Cyclocypridinae

1 Terminal segment of the T3 elongated, more than two times longer than wide, seta “g” on the same appendage long, exceeding distal end of terminal segment, carapace in dorsal view oviform................................................ 2

- Terminal segment of the T3 much shorter, less than two times longer than wide, seta “g” tiny, sometimes even missing, carapace in dorsal view laterally compressed, or elongated........................................................ 3

2 A1 6-segmented, swimming setae on the A2 missing, calcified inner lamella quite broad........ Kempfcyclocypris gen. nov.

- A1 7-segmented, swimming setae on the A2 present, calcified inner lamella narrow......................................................................................................... Cyclocypris Brady & Norman, 1889

3 Basal seta on the T2 present, carapace globular or elongated in lateral view....................................... 4

- Basal seta on the T2 absent, carapace most usually with highly arched dorsal margin, very rarely elongated.............. 5

4 Imprints of ovaries on the valves with distal end curved downwards......................... Physocypria Vávra, 1897

- Imprints of ovaries on the valves with distal end curved upwards............................. Allocypria Rome, 1962

5 Setae “e” and “f” on the T3 very short, seta h2 considerably longer than h1...................... Keysercypria gen. nov.

- Setae “e” and “f” on the T3 long, setae h2 and h1 subequally long............................... Cypria Zenker, 1854