W. Reiner 1953 Journal 14 July Mexico: Sinaloa: 9 mi. N Mazatlan Zweifel has decided to change elevation of camp from 600 ft to 1000 ft. Entire day spent in putting up poorly captured animals. In evening a visit to pool where Zweifel reported daytime breeding yesterday produced a single Scaphiopus at the pond margin. However, [illegible] 5 Diaglena, 5 Acrodytes, 4 Eunilica all taken in trees near pond. One Hypopachus from wet stream bottom currently without water. During afternoon Jerry caught a Ctenosaura and a leptophis. Previous day heavy rains during night and morning. Heavy rain during this morning. 15 July Mexico: Sinaloa: 9 mi. N Mazatlan Drove into Mazatlan for supplies and short swim at beach. Callisaurus draconoides taken on beach dunes. Road driving N of camp in evening produced 1 Trimeropodon, 3 Rhinodactylus, 3 Egalychinis, 2 B. horridilis 16 July Night road driving again over a slightly shorter course produced a similar taken as last night with the addition of a large Comproptis doliate and 2 Piturophius californicus. 17 July Camp broken during morning and entire day spent at beach and town of Mazatlan.