Albuquerque, Nelson R. de, and Roy W. McDiarmid. 2010. “ Redescription of Leptophis Cupreus (Cope) (Serpentes, Colubridae), a Rare South American Colubrine Snake ”. Papéis Avulsos De Zoologia 50 (23): 375-84. https://doi.org/10.1590/S0031-10492010002300001.