California Department of Fish and Wildlife
Aquatic Biological Assement

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Oligoneuriidae Level 1 Level 2

Oligoneuriidae

 

Key Characters

Abdominal gills on segment 1 held ventrally, gill fibrils longer than gill plates, or gill plate absent. Row of filtering hairs on front legs similar to those on Isonychiidae.

Tolerance unknown
Distribution AZ