- José H. Leal
Shell of the Week: The Multicostate Caecum
Another small (and neglected) local species of the family Caecidae (the caecums), Caecum multicostatum de Folin, 1867 has a tubular shell that rarely reaches beyond 2 mm (about 0.08 inch). The shell sculpture in this species shows a number of lengthwise, delicate ridges. The shell aperture (opening) is encircled by ring-like cords. The shell "plug" is blunt, hemispherical. The shell color is white or tan. The top image was taken with a Scanning Electron Microscope.
The Multicostate Caecum, Caecum multicostatum, from Sanibel. Photos by José H. Leal and Patricia A. Starkey.
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