Zweifl Aug. 5, 1950 Callisauro dromoides, and two Coluber flagellum. The snakes were indulging in libezpiel, despite the fact that the & had over about one inch long. "In every society, there is always a few who oversets it."* to 61 mi NW of Nazapa we found a new DOR Hydapius disertorum. This is in the Short Tree Forest. AT an Arroyo 8mi SE SW Alamos (where we camped last winter) we got 9 Cnemidophorus seekeri, no saps, Callisauro d. bravis and a Phyllodactylus. Ken shot the gerbo off a root-buttress (fig), most unusual for the beast to be day-active. A Phyllodryncles browni fortius, probably the second specimen of this race to be collected, was taken DOR 13.2 mi WSW of Alamos in the short-tree-forest. We made a wrong turns a few kilometers out of Alamos and went 40 kilometers out of our way. The Cuchiyagui was quite low, and easily closed. (We had earlier been forced to detours to cross the Rio Yagui, the pango having been washed away? We had to travel north to where a new dam is under