Bibliography
Cope, E. D. 1878 "1877". Synopsis of the Cold Blooded Vertebrata, procured by Prof. James Orton during his exploration of Peru in 1876-77. Proceedings of the American Philosophical Society 17: 33-49.
Cope, E. D. 1878 "1877". Synopsis of the Cold Blooded Vertebrata, procured by Prof. James Orton during his exploration of Peru in 1876-77. Proceedings of the American Philosophical Society 17: 33-49.
