Keyhole Limpets continued
Megatebennus bimaculatus - smaller, hole large, dark rays on end making two white spots, northern Puncturella major - large white limpet, Behring Sea Puncturella galatea -elevated. Puget Sound Puncturella cucullata - ribbed, Puget Sound to Monterey Puncturella cooperi - Catalina Isl. - internal plate between puncture and apex Subemargulina gatesi -Monterey - large, trough from apex to margin inside.
Haliotis fulgeus -green abalone-southern, rather thin, low spiral ridges, interior mostly green, fine peacock scar, about 6 holes, 6 inches. Var. walallensis , from Gualala , Sonoma Co., longer flatter, paler nacre. Haliotis rufescens - red abalone-outer layer projects over inner and makes fine red edge. Outside rough, holes large (3), prominent scar, 9 in., getting rare Haliotis cracherodii -black abalone, smooth Haliotis corrugata - corrugated abalone- size and color like rufescens, but nearly circular, high arched, thick externally, corrugated, 2 or 3 large holes, scar large and brilliant, southern. Haliotis assimilis - threaded abalone, deep water, San Diego to Monterey , large one 4 in. longa and 3 1/2 wide, 7 holes, exterior threaded like tapestry carpet, moderate furrow below holes, high arched, reddish out side, inside smooth silvery, no visible scar, thick, compact solid Haliotis gigantea -Japanese abalone-Central California to Aleutian Isl. , smaller southward, only 5 in. long, thin shell, sharp edge, spire prominent, surface uneven, 4 holes with high walls, interior very iridescent, light colors prevailing, scar not distinct.
Crepidula fornicata - Atlantic coast Crepidula onyx Panama etc. Crepidula rugosa - Cali. Largest on Cali. Coast, abundant ((Crucibulum )) Crepidula navicelloides - white, flat or irregular Crepidula lessoni - like navicelloides, but long, narrow, thickened by several layers partly detached at edges. ((Sentillina )) Crepidula dorsata - small, flat circular, thin, wrinkled, brown and white, deck partly detached.