California Department of Fish and Wildlife
Aquatic Biological Assement

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Perlidae Level 1 Level 2

Perlidae

 

Key Characters

Paraglossae much longer than glossae; tips of paraglossae distinctively rounded. Filamentous and highly branched gills extending laterally from ventral side of thorax. Usually predacious.

Tolerance  
Distribution CA, OR, WA, NV, AZ