Harger, O. (1873) [Erichsonia attenuata, Page 276] in A. E. Verrill, S. I. Smith, and O. Harger, Catalogue of the Marine Invertebrate animals of the southern coast of New England, and adjacent waters. In A. E. Verrill and S. I. Smith, Report upon the invertebrate animals of Vineyard Sound and adjacent waters, with an account of the physical features of the region In S. F. Baird, Report of Professor S. F. Baird, Commissioner of Fish and Fisheries, on the condition of the sea-fisheries of the south coast of New England in 1871 and 1872.Washington, D.C.: Government Printing Office.