Pseudalsophis dorsalis
Pseudalsophis dorsalis (Steindachner, 1876)
This species is distinguished from other species of Pseudalsophis by the combination of the following characters: (1) dorsal and ventral coloration similar to that of P. biserialis, but paler than that of P. occidentalis; (2) ventrals 211-232 in males, 215-240 in females; (3) subcaudals paired…