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Taxonomy > Modulidae > Modulus < Previous species - Next species > (within the family) Modulus disculus (Philippi, 1846) Keen (1971) Sea shells of tropical West America. Marine Mollusks from Baja California to Peru. - p. 400 Skoglund (2002) Panamic province molluscan literature: additions and changes from 1971 through 2000. III Gastropoda. - p. 50 Gurgo Salice & Cáceres (2021) Baja Californian sea shells. - p. 56 Statistics Frequency occasional - 24 localities (12.18 %) Sediment 42 (0 fine >> 100 coarse sediment) Size and comments A maximum diameter of 18mm is indicated by internet resources; beach finds reach this value. Images Larger diameter 14mm. Taxonomy > Modulidae > Modulus < Previous species - Next species > (within the family)