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MBSS Fish Information
POTOMAC SCULPIN
Cottus girardi

The Potomac sculpin is a member of the Sculpin family (Cottidae). This sculpin is found only in the Potomac River basin.

The map below shows presence (green circles) of this species in the 1995-2019 MBSS dataset.
Illustration by Dave Neely

Distribution of Potomac sculpin in Maryland (MBSS data):

The MBSS has collected the following fishes in the family Cottidae:

Common Name Genus & species
Mottled sculpin Cottus bairdi
Potomac sculpin Cottus girardi
Blue ridge sculpin Cottus caeruleomentum