R. Zweifel May 8, 1951 Marin Co., Calif. similar situation was at 15.8°C. Pana catesbeiana was present at one end of the lake where the stream entered. Bolinas Ridge, 1 mi. W road junction to Mt. Tamalpais Drossy areas interspersed in Douglas fir- madrona forest. Three Bufo lugubris were obtained— two under Douglas fir bark (fallen logs) and one beneath a rock. Tri- turus granulosus was present in the stream. Hyla regilla were calling. There four Rana boylii were seen but only one taken. Fogggy and probably a little cool (air 9°C) for the Rana. Reptiles found under cover included a Crotaphitis under a wooden box on the ground with an adult Hemidactylus marmoratus, a baby Coluber constrictor mormon under a loose piece of bark on a 6" diameter log, another baby Coluber beneath a board with an Eumeces skiltonianus, a small Thamnophis elegans under a piece of tin and three others Coluber Eumeces skiltonianus under