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Southwest Florida Shells with Emphasis on Sanibel & Captiva

By José H. Leal

Family Mangeliidae

Rubellatoma diomedea

Bartsch & Rehder, 1939

Shell size to 10 mm; shell biconical. Periphery angled. Sculpture of 7-10 axial ribs crossed by numerous fine spiral striations. Aperture comprising 1/2 of shell length. Color white with reddish-brown spiral band. Similar to K. rubella (Kurtz & Stimpson, 1851) from eastern Florida, from which it differs by stouter shell, shorter spire.