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  • José H. Leal

Shell of the Week: The Southern Spindle Bubble

Another species in the “bubble” category, Volvulella persimilis(Mørch, 1875) is locally rare, and a very small species, reaching only 4 mm (about 0.16 inch) in length. This snail has an involute shell, i.e., the entire shell spire is encased by the last whorl, which gives the shell its spindle-shaped appearance. The apex is pointed, and the shell surface is glossy, sculptured with a few very fine spiral lines.

The Southern Spindle Bubble, Volvulella persimilis, from Sanibel. Photos by Patricia A. Starkey.

#volvulellapersimilis #southernspindlebubble #rhizoridae #bubblesnail