Zooplankton of the South Atlantic Ocean
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Zooplankton of the South Atlantic Ocean
Key: Step 594. Copepoda: Family Eucalanidae (in part, 2) Rhincalanus females
Copepoda: Family Eucalanidae (in part, 2) Rhincalanus females

P5 terminal segment with smooth outer terminal spine, shorter than its segment:

Rhincalanus cornutus

Rhincalanus cornutus

P5 terminal segment with plumose outer setae (or spine), much longer than its segment.

Step 595
Decision path