G. D. Anderson 1958 Ambystoma macrodactylum oreum Jan. 9 Valencia Lagoon, Rio del Mar, Santa Cruz Co., Calif. upper road Home under construction oak. oak open oak woods N Pit baccharis To breeding pond Bonta Rd. 0° slope --> Thick Oak wood. gentle slope 15-20° Temp. 4" above surface of pit bottom - 7.4 °C. Humidity readings (Esling Psychrometer) over pool. over Ambystoma. Surface of [illegible] ground in pit moist but not wet. Water cannot be squeezed out of soil most places. However just below level of shelf, it becomes more moist. The 9 Ambystoma were found at the foot of the shelf in a cup shaped depression. This pocket was roughly 3" deep x 2'1/2-3" in diameter. It was sealed off at top - open only by 2 holes 1" apart each about 1/2" in diameter. When discovered a Hyla