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Taxonomy > Modulidae > Trochomodulus < Previous species - Next species > (within the family) Trochomodulus catenulatus (Philippi, 1849) 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 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. 100 Gurgo Salice & Cáceres (2021) Baja Californian sea shells. - p. 56 Statistics Frequency rare - 9 localities (4.57 %) Sediment 10 (0 fine >> 100 coarse sediment) Size and comments Internet resources give a maximum diameter of 22mm; beach finds from the Gulf remain under 20mm. Images Larger diameter 17.8mm. Taxonomy > Modulidae > Trochomodulus < Previous species - Next species > (within the family)