7 July animals were remarkably tame but would click down holes at the base of bushes when pursued. The animals also seemed to run a great distance to their burrows. Did not occur on the Cerro. Photo of one specimen. No chromatic color on any specimen. 256 Sceloporus clarki: John got me large ♂ off a rock in the Cerro. 257 - 258 Callisaurus draconoides: two from the flats near the Cerro. Others seen. # 257 ♂ throat bluish gray; lateral belly patches dark green - These bordered by a small area of salmon pink anteriorly and yellowish posteriorly. # 258 ♀ gular area orange; anterolateral- lateral patches orange bordered posteriorly on the sides by yellow; lateral base of tail yellow. 259 Cnemidophorus tigris: many collected in the flats at the base of the Cerro. Black throats. Only one pickled - others taken by John Wright for frozen tissue. Cnemidophorus burti: I got 7 from higher up on the Cerro. All taken by John Wright for frozen tissue. The ecological separation between this species and tigris is striking: