1992
Hernández G.,E. F. Mendoza Q., E. Godínez C., I. Goyenechea MG. 1992. Ophryacus undulatus (Horned pit viper) digestive disturbance. Herp. Rev. 23(3):81-82.
Taxonomic summary of Conopsis, Günther, 1858(Serpentes: Colubridae)
Phylogenetic relationships of snakes of the genus Conopsis based on morphology.
Systematics: its history, methods and applications to snakes of the genus Conopsis
First records of herpetozoans in Zimapán, Hidalgo, Mexico
The karyotype of Sceloporus macdougallii (Squamata: Phrynosomatidae)
Amphibians and reptiles of the Mezquital Valley, Hidalgo, Mexico