1 literature reference for Micrurus pyrrhocryptus COPE 1862:

Author: Cope, E.D.
Year: 1862
Title: Catalogues of the reptiles obtained during the explorations of the Parana Paraguay, Vermejo and Uruguay rivers, by Capt. Thos. J. Page, U.S.N.; and of those procured by Lieut. N. Michier, U. S. Top. Eng., Commander of the expedition conducting the survey
Source: Proc. Acad. Nat. Sci. Philadelphia 1862: 346-359.