This subspecies, Crotalus intermedius gloydi, can be identified by its scalation. It is characterized by having the postnasal scale in broad contact with the first supralabial scale. Also, the postnasal is usually not in contact with any other supralabial scale.
Crotalus intermedius gloydi is found in Mexico, in south, central and northern Oaxaca, as well as in central Puebla.
The type locality given is "Cerro San Felipe (elevation 10,000 ft. ) near Oaxaca, Oaxaca, Mexico".
