Shells small, translucent, retusiform, with apex recessed; aperture narrow, longer than the body.
Volvulella Newton, 1891:
Labial margin finishing in an open spine posteriorly, and rounded anteriorly; columella somewhat twisted.
| GASTROPODA | RHIZORIDAE |
Shells small, translucent, retusiform, with apex recessed; aperture narrow, longer than the body. |
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Volvulella Newton, 1891:Labial margin finishing in an open spine posteriorly, and rounded anteriorly; columella somewhat twisted. |
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