Cypridinae, Baird, 1845

Savatenalinton, Sukonthip, 2022, On Cypris songkhramensis, a new species of Ostracoda (Crustacea) from Thailand, Raffles Bulletin of Zoology 70, pp. 440-450 : 448

Key to genera of Cypridinae

1. T 2 penultimate segment undivided.........................................2

– T 2 penultimate segment divided.............................................3

2. d2 seta on T 2 absent, selvage on both valves submarginal..... ............................................................................. Pseudocypris

– d2 seta on T 2 present, RV with inwardly displaced selvage .. ........................................................................................ Cypris

3. Inwardly displaced selvage present on both valves ...............4

– Inwardly displaced selvage absent or present on one valve..5

4. β-seta on Md-palp long and slender (seta form), d1 and d2 setae on T 2 subequal in length ............................. Globocypris

– β-seta on Md-palp dome-shaped, d1 seta c. 2 times the length of d2 seta ......................................................................... Alboa

5. Submarginal selvage on both valves, posterior inner lists of both valves not running parallel to valve margin ... Mnementh

– Inwardly displaced selvage on RV only, LV and RV with large inner list and running parallel to valve margin......... Ramotha