Field notes, v4228
Page 413
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Rants, Bear 2013 Journal Aug. 22 High point on road from Tlapalapa to Casilla, Chiapas, Mexico. Dwelt in late anticipating a long night of searching. Trapped specimens in afternoon. At dawn cloudy, cold, & windy around 14:00 and rain threatened but never arrived aside from a brief sprinkle. At 20:00, we headed down to the final stream we searched last night & started looking at 20:30. Conditions were fairly dry and I got only Crusts + Grygaster. Omar found a Cryptotriton alvarezi on a root on the bank beside the trail. It is one of the smallest Cryptotritons I've seen - I'm impressed he noticed it. He, Andy, & Jorge also got 2 B. hertwigi, 4 B. mulescos, a P. lizal, and a Grygaster. We searched until 23:10 then went back to camp where I found a B. hertwigi on a bank. We drove on to a point 1.8 Km W of camp and found 2 Grygasters + 1 B. occidentalis on a vegetated roadbank. This might be the highest recorded elevation for B. occidentalis; this did also seem to be the only place where the two species (B. occidentalis + B. hertwigi) are found in sympatry. Searched the roadbank from 23:55-00:25, then drove back to camp and drank some celebratory tequila for the Cryptotritons. Aug. 23 We went to Tlapalapa w/ Hector Olguin in search of a cave that the radio tower guard told us about. The presidente municipal sent us to the small village of San Agustin, ~20 min by road from Tlapalapa, where we spent almost an hour searching for a guide. We finally found a man + his son who took us downhill through corn fields, scrub, and pine-oak forest to the cave, which had a small entrance but widened slightly inside so that we could almost walk while crouching, although it had to crawl through most of it. The cave walls were dry; not much