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Southwest Florida Shells with Emphasis on Sanibel & Captiva

By José H. Leal

Family Cancellariidae

Trigonostoma tenerum

(Philippi, 1848)

Fine-cut Nutmeg

Shell size to 30 mm; shell stocky, solid, apical part of whorl with strong, flat shelf. Side of whorls with 3−5 beaded cords. Umbilicus very deep, funnel-shaped. Color light-brown to light-orange to yellow. This species is known mostly from shells collected through offshore dredging. The "yellower" specimen was collected by Michael Gillmore (Michael G-by-the-Sea) on Christmas Day, 2014 on Blind Pass, and the lighter-colored specimen by Lois Dunnam on December, 2003, after a winter storm, on the beach off West Gulf Drive’s Beach Access no. 7, both on Sanibel Island.