Seanet High Intertidal

High Intertidal Mid Intertidal Low Intertidal    Rocky Shore Taxonomic Subtidal Taxonomic    Rocky Shore by Pictures Subtidal by Pictures

Lottia digitalis (Rathke, 1833)
Phylum Mollusca, Class Gastropoda, Subcl. Eogastropoda, Order Patellogastropoda, Family Lottidae

Apex near front, sometimes overhangs; height moderate, anterior slope concave; to 30 mm long; may have radial ribs (round x-sec) on posterior but not anterior; brown to dark olive w. white checkering; shell characters highly variable.

Northern species. Abundant, high to mid-intertidal zones, exposed & protected outer coast; in Monterey occurs more frequently on Pollicipes than on rock; also on mussels shells.

Geo Range: Aleutian Islands, Alaska to Pt. Conception
Synonyms: Collisella digitalis, Acmaea digitalis
Similar species: L. austrodigitalis is nearly identical; see table