W. Riemer 1949 Journal 16 July Arizona, Santa Cruz Co., Peña Blanca Spring after rains had stopped collected young T. eques and S. clarkii in vicinity of camp ground. After dark drove short distance up road toward Ruby and picked up several B. alvarius close to Springs. Nothing seen farther up road. Below Springs on road to Mogoles about 1 mi, NE camp picked up H. anicolor, B. pustulosus, M. carolinensis and D. regalis plus larvae of amphibs in small walla rock-walled pools in stream channel parallelling roadway. Dark, no moon, cool. More of amphibs heard calling. On returning to camp saw three large B. alvarius in shallow end of stock through by reservoir. Took two. 17 July Arizona, Santa Cruz Co., Peña Blanca Spring Morning spent at collection locality of Hylo, Microhyla, Bufo, Diadophis to write notes and R. Stebbins took pictures of Hylo resting on rocks. Afternoon spent writing notes on yesterdays catch. Heavy rains occurred in afternoon and during evening went out to tank 2 mi. W of Peña Blanca Springs. Here collected R. pipiens and good series Microhyla. Heard first Microhyla call.