Primno brevidens

Taxon-Order: 
Amphipoda

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Distribution: 
Pacific ocean, warm and temperate waters.
Size: 
? - 9.0 mm
Useful Facts or Characters: 

Stout body, very short rostrum that is rounded in dorsal view.  Longer teeth on the anterior margin of the 5th pereopod.

Natural History: 

One of the most abundant hyperiid amphipods in this area.  Appears to be more abundant in summer than spring or winter.

References: 

http://www.marinespecies.org/amphipoda/

Bowman, T.E. (1978) Revision of the pelagic amphipod Primno (Hyperiidea: Phrosinidae). Smithsonian Contributions to Zoology 275: 1-23.