Zooplankton of the South Atlantic Ocean
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Zooplankton of the South Atlantic Ocean
Key: Step 1160. Copepoda: Genus Onchocalanus males
Copepoda: Genus Onchocalanus males

Left P5 about twice as long as Ur. Right P5 much shorter than left leg segment 1. Penultimate segment of left leg with row of strong spinules:

Onchocalanus magnus

Onchocalanus magnus

Left P5 shorter. Right P5 longer than left leg segment 1. Penultimate segment of left leg without row of strong spinules.

(Males unknown for Onchocalanus subcristatus)

Step 1161
Decision path