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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
ELKadeath
Bufro boreas
July 29 Ahwahnee Meadow, 4000 ft. Yosemite Valley
Removed last of traps, equipment from meadow
6:45 a.m. max-min 97-39 F. Pond A & B
had moist mud bottoms. Turning logs at
bottom of pond A yielded 3 metamorphosed
toads active on wet mud surface. First sign
of successful toad hold 2 years. Length S-V
of toads: 13.2, 14.8, 12.6 mm. Recently meta.
metamorphosed Hydra present under some logs.
Aug. 23 Same locality. Night check 8:15-9:05 p.m. yielded
two adult >> toads at SE corner of meadow
along the bridle path. Weather had been too
corriged. No toads found over ponds A, B, etc.
or over open grassland. Mild evening with air
traps in high 60's. Toads very active. ELK
#808 tested & stomach preserved. S-V length 81.2
mm. Dorsal color olive-brownish dark with
dark blotches < 1 cm. length. Venter entirely
unspotted.
Aug. 29 Color notes on ELK #809, S-V length 89.5 mm.
Ovary expanded, eggs < 1.4 mm. diameter. Fat bodies
not greatly greatly expanded.
Sept 8 Ahwahnee Meadow, 4000 ft., Yosemite Valley
7:00 p.m. Check of study area. At pond A
I found 5 of this summer's metamorphosed
toads. S-V length about 3/4". These are larger
than yearling B. boreas I found in June
and July at Tioga Pass. A large single