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Taxonomy > Calyptraeidae > Calyptraea < Previous species - Next species > (within the family) Calyptraea mamillaris Broderip, 1834 Keen (1971) Sea shells of tropical West America. Marine Mollusks from Baja California to Peru. - p. 456 Brusca (1980) Common intertidal marine invertebrates of the Gulf of California. 2nd edition. - p. 166 Paredes & Cardoso (2007) La familia Calyptraeidae en Perú (Gastropoda: Caenogastropoda). - p. 177 Ortíz-Arellano & Flores-Campaña (2008) Catalogo descriptivo e ilustrado de los moluscos de la zona Intermareal de las islas de la bahía de Navachiste, Sinaloa, México. - p. 104 Statistics Frequency common - 55 localities (27.41 %) Sediment 9 (0 fine >> 100 coarse sediment) Size and comments Up to 38mm in diameter according to the literature and internet resources; this size is exceeded by beach finds. Images Larger diameter 23mm. Taxonomy > Calyptraeidae > Calyptraea < Previous species - Next species > (within the family)