E.V. Miller 1940 General Account. April 15 In my traps I took 4♀, 3♂ Peromyscus boylii, one ? small Nestoma-like mammal. ? in a rat trap I caught a Bassariscus astutus by the tail. I caught a skink in leaves on the ground while picking up traps. Birds of the region which I saw were: Black-crested Titmouse, Band- tailed Pigeon, Chipping Sparrow, Whip-Poor-Will (heard), Bewick Wren, Acorn-Scoring Woodpecker, Jays- Aphelocoma sp?, Cedar Warbling, and Grail (sp?) We drove back to Monterrey to have the car repaired. April 17 Spent all day yesterday getting car fixed. After- wards we drove S of Monterrey on the Pan-American Highway to Kilometer 755. Here on the night of the 16th we camped by a small irrigation ditch. I set out 50 m.specials, 10 no1 Schuyler and 50 live traps (for mice). The first 60 were set along the edge of a corn field bordered by brush. In these I took 2♀; 1♂ Lionops sp., 1♀ Sigmodon sp., 1♂ Baiomys sp., 2♂, 1♀ Perothathus merriami, 1♀Perothatus hispidus, and 1♂, 3♀ Peromyscus leucopus. From here we Ciudad drove S past Victoria. Our position last night was Km 755, Cruzy Cruz, 29 mi. N Victoria, Tamaulipas. We stopped in a tropical habitat. ?n late afternoon I set out 50 m.specials and 10 no1 Schuylers. I shot a Motmot and saw numerous Parrots, Pigeons, and Doves. The traps were set along a dry, small, rocky, stream bed with fairly dense forest with medium dense underbrush. Our position this night is Arroyos