Lee Arnold 1937 Neotoma lepida 2 mi. W Smith Creek Cave, 6,300 ft., T17 N, T7Monah, White Pine Co., Nevada June 12. Last night I caught 6 Neotoma lepida in the same trapline as on June 11. They consisted of 1 Adult ♂; 3 Imm ♂; 2 Imm ♀. It was interesting to find that a greater % of Neotoma than Peromyscus was caught on the second night while Peromyscos were the dominating factor on the 1st night. June 13 Caught 2 Neotoma lepida on same trapline as June 12. June 14 Also 2 Neotoma lepida in same trapline! Due to the changing of camps etc. I have been unable to spend as much time as usual on this trapline. The rats consisted of one adult ♂ and one imm ♂. June 15 In a trapline of 40 traps set on the flat land beside the creek about 1 mile west of camp I caught 1 adult ♀ and 1 Imm. ♀. These rats do not seem to be as common here as on the side hills and on the flatland closer to Smith Creek Cave. June 16 In 7 rat traps set up a gulch ½ mi. w Smith Creek Cave, White Pine Co., Nev. I caught one Imm. Neotoma lepida. There was much evidence of Neotoma in the