Seanet High Intertidal

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Lottia scabra (Gould, 1846)
Phylum Mollusca, Class Gastropoda, Subcl. Eogastropoda, Order Patellogastropoda, Family Lottidae

Conspicuous radial ribs (triangular x-sec) with darker- pigmented interspaces & margin scalloped all around; to 35 mm long; side of foot & head white with black speckles; apex at front quarter of shell; height low to moderate, anterior slope straight; shell mottled tan, gray, white.

Abundant, high to upper mid-intertidal zone on horizontal surfaces, exposed & protected outer coast. Homes to specific site at low tide; also lives on Lottia gigantea.

Geo Range: Cape Arago, OR to southern Baja
Synonyms: Collisella scabra, Macckintockia scabra, Acmaea scabra
Similar species: L. digitalis & L. austrodigitalis lack black speckles on side of foot & anterior ribs on shell; see table.