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Lectotype USNM 82997 (designated | by | Henderson, | 1920: | 30); | Paralectotypes | USNM |
94085, 1 dd, MCZ 7707, 1 dd. |
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12 miles East from Frying | Pan | Shoals, | South | Carolina, | 22 | m | (subsequent | designation |
by Henderson, 1920: 30). |
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Shell medium size (10.5 | mm | of length), white, slightly curved. Six | primary ribs |
extending over entire shell to | oral | aperture. Striated between ribs. Apical, | oral sections |
hexagonal. |