Zooplankton of the South Atlantic Ocean
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Zooplankton of the South Atlantic Ocean
Key: Step 1164. Copepoda: Family Diaixidae males
Copepoda: Family Diaixidae males

Left P5 distal segment with 2 projections, separated from segment: one is curved, other with excavation distally; distal part of penultimate segment comb-like:

Diaixis trunovi

Diaixis trunovi

Left P5 distal segment with 2 finger-like projections; distal part of penultimate segment not comb-like:

Diaixis helenae

(Males unknown for Diaixis hibernica tropica)

Diaixis helenae
Decision path