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Taxonomy > Calyptraeidae > Crepidula < Previous species - Next species > (within the family) Crepidula excavata (Broderip, 1834) Keen (1971) Sea shells of tropical West America. Marine Mollusks from Baja California to Peru. - p. 460 Brusca (1980) Common intertidal marine invertebrates of the Gulf of California. 2nd edition. - p. 168 Skoglund (2002) Panamic province molluscan literature: additions and changes from 1971 through 2000. III Gastropoda. - p. 72 Paredes & Cardoso (2007) La familia Calyptraeidae en Perú (Gastropoda: Caenogastropoda). - p. 178 Gurgo Salice & Cáceres (2021) Baja Californian sea shells. - p. 34 Statistics Frequency very common - 69 localities (35.03 %) Sediment 21 (0 fine >> 100 coarse sediment) Size and comments The maximum length is 52mm according to the literature; beach finds remain below 45mm in length. Images Length 36.5mm. Taxonomy > Calyptraeidae > Crepidula < Previous species - Next species > (within the family)