Z. Tamás Nagy, Glaw, F., Andreone, F., Wink, M., and Vences, M., ?Species boundaries in Malagasy snakes of the genus Madagascarophis (Serpentes: Colubridae sensu lato) assessed by nuclear and mitochondrial markers?, Organisms Diversity & Evolution, vol. 7, pp. 241 - 251, 2007.