Zooplankton of the South Atlantic Ocean
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Zooplankton of the South Atlantic Ocean
Key: Step 1159. Copepoda: Genus Cornucalanus males
Copepoda: Genus Cornucalanus males

Anterior part of head (lateral view) with deep, wide gap between Ro and forehead. P4 Co with seta:

Cornucalanus chelifer

Cornucalanus chelifer

Anterior part of head (lateral view) without any gap between Ro and forehead. P4 Co without seta:

Cornucalanus robustus

Cornucalanus robustus
Decision path