Cypridopsinae, Kaufmann, 1900

Savatenalinton, Sukonthip, 2023, Songkhramodopsis gen. nov., a new genus of Cypridopsinae (Crustacea: Ostracoda) from Thailand, Zootaxa 5254 (1), pp. 51-68 : 66-67

Key to tribes of Cypridopsinae

1. a. Terminal segment of Mx1-palp spatula shape.................................................. Potamocypridini b. Terminal segment of Mx1-palp cylindrical shape............................................................ 2

2. a. A1 6-segmented, T3 without pincer organ......................................... Songkhramodopsini trib. nov. b. A1 7-segmented, T3 with or without pincer organ........................................................... 3

3. a. Marginal septa present, T3 without pincer organ, T2 penultimate segment undivided.................... Cyprettadopsini b. Marginal septa absent, T3 with pincer organ, T2 penultimate segment divided..................................... 4

4. a. Limbs with reductions of segmentation and chaetotaxy............................................ Paranadopsini b. Limbs without reductions of segmentation and chaetotaxy.................................................... 5

5. a. RV overlapping LV..................................................................... Plesiocypridopsini b. LV overlapping RV................................................................................... 6

6. a. Female claw G2 very large and strongly serrated................................................. Zonocypridini b. Female claw G2 normal size, slightly strong serrated in some members................................ Cypridopsini