J.D. Cenderson 1958 Amblystoma macrodactylum croceum June 28 ½ mi. NW [illegible] Sta. 4 mi. W. Watsonville, Santa Cruz Co., Calif. under logs closer to water. Those juveniles must have dispersed on a wet, foggy night!! Soil samples were taken from under logs (for first 7 animals only). Taken back, weighed & dried to determine % moisture in soil. Following percentages recorded Temp data for same animal respectively; air temp. cl temp. temp. under log. 20.4°C 20.0°C 21.0 20.0 20.8 20.0 19.6 19.8 22.4 23.0 22.4 22.0 21.4 21.0 19.2 19.2. Time 3:30 - 4:30 pm. Sky clear, bright sun. Cloudy varied from 5% - 30% but most open. Logs varied from very small - 1ft long, 2" diameter to 9 ft long, 1 ft diameter. In all soil was sandy loam, no vegetation, few roots. Caught 2 shrews under a log 5 ft from a log which produced 2 young croceum. Shrews are S. Most probably a predator. Mole workers under some logs - another likely predator.