Vanzolini, P. E. (1970). Climbing habits of Leptotyphlopidae (Serpentes) and walls’s theory of the evolution of the ophidian eye. Papéis Avulsos De Zoologia, 23(1-23 (1970-1971), 13-16. https://doi.org/10.11606/0031-1049.1970.23.p13-16