San Felipe, S.L. Lower Calif. Mexico. March 29, 1926. 25 haps caught 1 ♂ Neotoma (immature) 1 ♂ + 1 ♀ Perognathus 43. Neotoma ♀ 173.5 G. 336-155-32-35. Caught in sandy bushy draw. 44. Dipodomys ♀, 43.7 G. 190-91-37-6. Like same as above. 45. Elegant Tern ♂ Killed on the beach at high tide. 46. Rattlesnake 66S Found coiled in a round heap near tent by Huey. Day + Night were very windy + therefore windy, uncomfortable, few land birds being seen. On the beach some Elegant Terns, Ring Billed Gulls, Yellow-legged Gull, California Gull Caspian Tern, Lesser Sand Peldians .. While in camp in the afternoon, Mr. Huey discovered a rattler coiled in a round heap in a round depression in the leaves under a Yuccam brush on the side of a sandy bank. Evidently it was asleep but when a string was lowered over his head his tongue flickered forth. He was quite torbid.