Crepidula perforans (Valenciennes, 1846)
White slippersnail
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Family:  Calyptraeidae (slipper shells)
Max. size:  3.8 cm NG (male/unsexed)
Environment:  benthic; marine
Distribution:  Northeast Pacific: Canada, USA and south to Baja California. Climate: temperate to subtropical.
Diagnosis:   
Biology:  Found on rocks, typically on insides of shells, or in clam holes, along the intertidal zone and deeper (Ref. 95344).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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