W. Healey Dall, A preliminary catalogue of the shell-bearing marine mollusks and brachiopods of the south-eastern coast of the United States, with illustrations of many of the species. Washington: Government Printing Office, 1889, p. 221.

W. Healey Dall, A preliminary catalogue of the shell-bearing marine mollusks and brachiopods of the south-eastern coast of the United States, with illustrations of many of the species. Washington: Government Printing Office, 1889, p. 221.