Hanken, James 1978 Thorius sp. ~ 10 m. W San Vicente Lachixio, Oaxaca 2 July 4 animals, all very similar in coloration. Brown dorsal stripe, edged laterally by fine light margin, "pinched" at shoulder. Venter dark, w/ light speckling. Generally undistinguished. 4 July 12.5 mi SW Tototutpec, Est. Oaxaca, Oaxaca 1 animal. Generally undistinguished. Resembles T. macdougalli of C. Pelon most closely because of generally small size (but robust nonetheless) moderately sized nostril and especially the red spot on the nape. Dorsal stripe dark brown-red, w/ slight chevron markings, "pinched" at shoulder but still not as ornate as T. sp. "cloud". Venter dark w/ rel/extensive white flecking, almost forming white patches. 8 July 54 Km N Guelatao, Est Oaxaca, Mexico Brad and I collected three animals here which by their general small size and reddish dorsal stripe resemble Thorius sp. "cloud". However, only one animal has the ornamentation ornate pattern (pinched) in the stripe over the shoulder characteristic of the species, while the remaining two animals have a normal stripe. The animals were frozen separately for electrophore