El Cayon Canyon, ft. E. base San Pedro Martir Mts. Lower California Mexico May 14. Gilmore 1926 210. Snake killed while it was going past the camp near creek Spent the day making camp and assorting equipment. Blue The canyon is full of birds and the creek is full of frogs. Between the two we have music day & night. Gilmore 1926. May 15 40 traps caught. 14 Neotoma and + 1 Toad 3 ? Perognathus 211. Toad caught in trap in sandy gravel assoc. 212. Snake caught at edge of creek under willow brush. spinosa 213. Neotoma ♀ 136.8 G. 306-133-33-31 Caught among granite boulders at edge of stream. spinalus 214. Perognathus ♀ 18.6 G. 193-107-23-5 caught in sandy gravel association. vermian 215. Petomyscus ♀ 18.1 G. 182-91-21-18 Caught in grass near stream. spinatus 216. Perognathus ♀ 13.0 G. 174-101-21-5. Caught among rocks at edge of stream. oranium destroyed by mice vermian 217. Petomyscus 19.0 G. 180-93-20-18 Caught in grass near stream. spinatus 218. Perognathus 12.5 G. 178-95-22-5. Caught among rocks at edge of stream.