232 Jan. 17, 1951 San Mateo Co., Calif. Skylark bird at 2.3 mi W San Bruno, at junction of road to S.F. prison. Here we collected around two ponds bordered by Eucalyptus & Salix. The surrounding hillsides are grassy. Bill Himes obtained several Triturus varios granulatus adults and larvae. The adults were in four feet of water, the larvae in about two feet. No adults were found around the edge. A large Therophis purtatus taken at the edge of the pond had eaten, tail first, a Triturus. Three smaller in- dividuals found in the grass bordering the water had body temperatures of 25.4°, 27.8°, and 29.2°C. Batrachoseps attenuatus were very common beneath logs. A single juvenile Anaxyrus californicus was taken. Hyla regilla and Rana aurora were present. An adult Coluber constrictor occidentalis was found under a rock on a grassy hillside. The rock was roughly triangular in outline, 10" on a side and 6" deep. The snake was in a hollow which may have been part of a vergent burrow. The space was firmly closed on one end and closed by loose dirt on