Littoraria angulifera (Lamarck, 1822)

mangrove periwinkle

Description: Broad conical shape and a relatively thin shell. Color is variable and can be yellowish-white, orange-yellow, or grayish brown with dark brown axially arranged splotches. Sculpture consists of numerous spiral threads and somewhat irregular diagonal growth ridges. Aperture is broad and oval.

Size: 20-30 mm.

Ecology: Sheltered and brackish water mangrove swamps, above high-tide mark.

Geological range: Late Pliocene-Recent (4-0 million years ago).

Geographic distribution: Caribbean, Florida, .

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