Template:Cope, 1863d

• Cope, E.D. 1863. On a species of Vipera hitherto unknown. Proceedings of the Zoological Society of London 1863: 229–230. BHL  
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Nomenclatural acts

• Date of publication: June 1863 [Reprinted on Ann. & Mag. Nat. Hist., 3d. Ser., vol. XIII, 1864, pp. 181–182]

New names (1)

• Vipera confluenta [p. 229]