Key: Step 977. Copepoda: Genus Calanopina males
Copepoda: Genus Calanopina males

Distinct “thumb” present on right P5 Exp1 - Exp2.

Step 978

“Thumb” on right P5 Exp1 - Exp2 rudimentary or absent:

Calanopia elliptica

Calanopia elliptica
Decision path