The examples are too often injudiciously truncated, and perhaps sometimes, I hope very rarely, alleged in a mistaken sense; for in making this collection I trusted more to memory, than, in a state of disquiet and embarrassment, memory can contain, and purposed to supply, at the review, what was left incomplete in the first transcription.

Cells obliquely truncated above with a short spine on the outer angle; opening large, suboval, with an obtuse angle outwardly; margin slightly thickened, wholly unarmed. Habitat: Off Cumberland Islands, 27 fathoms, fine grey mud.