Verrill, A.E. & K.J. Bush. 1897. Revision of the genera of Ledidae and Nuculidae of the Atlantic coast of the United States. American Journal of Science 3 (Ser. 4): 51-63. Available electronically.
Verrill & Bush, 1897. Amer. J. Sci. 3: 54, 62.
Verrill & Bush, 1897. Amer. J. Sci. 3: 55, 63.
Verrill & Bush, 1897. Amer. J. Sci. 3: 57, figs. 7-8, 22.