Greater short-horned lizard its close relative the pygmy short-horned lizard ("Phrynosoma douglasii" ), which has the same basic body type consisting of small pointed scales around the head and back. Until recent mitochondrial DNA evidence, "P. hernandesi" was considered to be the same species as "P. douglasii". They are now considered distinct species with the pygmy short-horned lizard ("P. douglasii" ) occupying the northwest portion of the United States and extreme southern British Columbia. When placed together the two are easily distinguished at full size, the pygmy short-horned lizard being much smaller. "P. hernandesi" is a highly variable species with different geographic populations
Megophrys aceras Megophrys aceras Xenophrys aceras, the Perak horned toad, Perak spadefoot toad or Malayan horned frog, is a species of amphibian in the family Megophryidae found in Peninsular Malaysia and Thailand, and possibly in Indonesia. Its common name refers to its type locality, Bukit Besar in Perak state, Malaysia. Male "Xenophrys aceras" grow to snout-vent length of and females to . They have smooth back with scattered warts and low ridges and short dermal projections on top of the eyelids (the "horn"). The dorsal colour is variable from grey, brown to bright orange; they usually have a triangular mark between the