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Southwest Florida Shells with Emphasis on Sanibel & Captiva

José H. Leal

Family Mangeliidae


Pyrgocythara filosa

Reher, 1943

False Mangelia

Size to 7 mm. The elongate shell has a sculpture of about 10–12 axial ribs that span the entire whorl, each rib abutting the ones in previous whorls. The ribs are crossed by finer spiral cordlets. The shell color in this species is very distinctive, with each half-whorl divided into an anterior brown part and posterior cream-colored one. This is worn shell was found by Lois Dunnam on Gulfside City Park Beach ("Algiers" Beach), Sanibel, in 1996.

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