On Cypris songkhramensis, a new species of Ostracoda (Crustacea) from Thailand
Author
Savatenalinton, Sukonthip
text
Raffles Bulletin of Zoology
2022
2022-10-14
70
440
450
journal article
216783
10.26107/RBZ-2022-0024
b46182b7-ce8c-447a-a7eb-5386e38bb7d5
2345-7600
7399838
DA6F7211-765F-4E38-8DBE-A6E3833AF2E0
Key to genera of
Cypridinae
1. T2 penultimate segment undivided.........................................2
– T2 penultimate segment divided.............................................3
2. d2 seta on T2 absent, selvage on both valves submarginal..... .............................................................................
Pseudocypris
– d2 seta on T2 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 T2 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