Key: Step 1147. Copepoda: Genus Amallothrix males
Copepoda: Genus Amallothrix males

P5 right Ba only slightly swollen:

Amallothrix emarginata

Amallothrix emarginata

P5 right Ba very swollen.

(Males unknown for Amallothrix hadrosoma, doubtful description for Amallothrix obtusifrons)

Step 1148
Decision path