12 July decided we would have to spend the night before the water in the arroyo would go down enough to cross. We therefore spent the rest of the afternoon collecting herps and mammals. Our camp perched on the west side of the Arroyo along the road. We worked the area both north & south of the road along the west side of the arroyo. The following herps were seen or collected during the afternoon and evening. It was not raining during the afternoon but it rained catfurankly after dark. 55 - 163 Bufo punctatus: Several dug out by pulling rocks out of the ground during the afternoon others found hopping around on the ground after dark. Several came into camp during the evening to feed on the termites around the lights. Ground color dull brown with distinct red "warts". Bottoms of hands & feet bright yellow-brown. 164 Bufo alvarius: several seen after dark but near the lights and [illegible] away from the camp. Most young but one adult seen. 165-166 167-169 Bufo mazatlanensis: two [illegible] after dark away from camp. Pterochyla fodiens: - seen & caught both near the lights near camp & by the edge of a gully running with water. One calling from near the gully. 170 Holbrookia elegans: one caught by John + Jim as it was forced out by the rising water in the stream flood plain of the river w/ the arroyo.