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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Hendrickson
1950
Batrachoseps attenuatus
March 6 1.2 mi. N (on U.S. Hwy #99) Fort Tejon, Kern Co., 2700 ft., Calif.
Found a few under logs and loose pieces of bark about lying on and in thick valley oaks leaf litter. All the animals I found were well up on the canyon wall, at least 10 ft. above the stream level
Water in stream - 11.6°C.; air at 6" (shade) - 7.4°C.; soil under dead bark - 7.8°C. (4:00pm)
0.8 mi. N (on U.S. Hwy #99) Fort Tejon Kern Co., 3000 ft., Calif.
Collected a number under boards and logs near the seep below Fort Tejon and near the stream below it. Distance above water level at which the animals were found ranged from 0" (actually in boggy ground at waters edge) to about 4'-5'. Snow was seen on slopes about 300-500 ft., above collection locality.
Taking the two localities: 1.2 mi. & 0.8 mi. N Fort Tejon, 2 men worked for 2 hours and collected Batrachoseps. The animals from the two collection sites were lumped into one batch. See catalogue # -#
Dr. Robbins noted that on this and on previous visits, he had found most of the Batrachoseps encountered very near the warm water of the seep. He said further, that the seep apparently runs all the year. We speculated on whether the year-round wetness and the warmth of the water might not account for the apparent relative abundance of the animals in this extreme outpost (?) of their range (the warmth of the water counteracting somewhat the severity of the winter weather).