Siriella pacifica

Taxon-Order: 

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Distribution: 
La Jolla, California to Turtle Bay, Baja California.
Habitat: 
Shallow coastal waters and kelp beds.
Size: 
? - 9 mm
Diet: 
Omnivorous, detritus, copepods and cladocerans.
Predators: 
Kelp fish.
Useful Facts or Characters: 

Terminal margin of telson has three small spines between a single pair of very long spines.

Natural History: 

Remains near the sea floor by day and moves to open waters at night.

References: 

Tattersall, W.M. (1951) A review of the Mysidacea of the United States National Museum. Bulletin of the United States National Museum 201: 1-292.