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Southwest Florida Shells with Emphasis on Sanibel & Captiva

By José H. Leal

Family Pyramidellidae

Turbonilla dalli

Bush, 1899

Shell size to 9 mm; shell slender, thin, glassy, similar to T. interrupta, but with convex whorls. Sculpture of about 18 curved axial ribs. Axial ribs abruptly interrupted at base. Spiral striations absent. Color translucent white.