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Southwest Florida Shells with Emphasis on Sanibel & Captiva

José H. Leal

Family Pyramidellidae


Peristichia toreta

Dall, 1889

Tower Pyram

Shell size to 11 mm; shell slender, elongate. Sculpture of three nodulose spiral cords and single smooth, narrow spiral thread just above suture. Base with single broad nodulose spiral cord. Outer lip internally with 3-4 denticles. Posterior canal well-defined. Color white. This species is more slender, has a relatively smaller aperture, and more delicate and regular sculpture than the preceding species, Peristichia agria.

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