1992
Flores-Villela,O., F. Mendoza Q., E. Hernández G., M. Mancilla M., E. Godínez C., I. Goyenechea MG. 1992. Ophryacus undulatus in the mexican state of Hidalgo. Texas Jour. of Sci. 44(2): 249-250.
The karyotype of Sceloporus macdougallii (Squamata: Phrynosomatidae)
Amphibians and reptiles of the Mezquital Valley, Hidalgo, Mexico
First records of herpetozoans in Zimapán, Hidalgo, Mexico
Systematics: its history, methods and applications to snakes of the genus Conopsis
Taxonomic summary of Conopsis, Günther, 1858(Serpentes: Colubridae)
Phylogenetic relationships of snakes of the genus Conopsis based on morphology.