Littorina keenae Rosewater, 1978
Eroded periwinkle
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Family:  Littorinidae (periwinkles)
Max. size: 
Environment:  benthic; marine
Distribution:  Eastern Pacific: USA to Mexico.
Diagnosis:  Shell has 2 whorls, and is usually eroded at tip. Purplish brown with faint white markings and a white band on the edge of the shell's mouth; smooth, flat surface next to opening. It is an important source of erosion of high intertidal cliffs (Ref. 312).
Biology:  It has a shell length of 2 cm long (Ref. 312).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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