Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Dreare, H.
1991
August 5 (continued)
juniper. By watching his head then whole body crawl past a rock I timed him at approx 1m/34 secs. Tongue flicks almost continuously, head makes small lateral movements, and he flows over the substrate (photos). As I head back for water and a snack to carry in search of #8, 5 preliminas (Tayassu tajacu) crossed single file going up from the sycamore's in Silver Creek to the center of our study area. They are strikingly larger than those I saw last month at La Selva, and have been walking - their hair is wet and matted.
At 0920h I hear a possible rattle in an Opuntia at roadside as I pull up to the Hardys' house - sure that it's some sort of insect, I check anyway and catch an adult male Crotalus molossus (1025+73 mm, 732 g)! I started walking up the little mining road opposite the picnic pullout at our study site at 1000h and at 1040h located C. molossus #8 approx 100m N of the crest of Limestone Mountain ridge approx 200m E of the mining road. He is in a pile of reddish rock on a SW facing or W facing slope, partly exposed to sun from down among the rocks. The snake was coiled tightly w/ head tilted up the inner edge of an outer coil, and rattled once as I clamored down for a look and photos. At 1145h I find C. molossus #3 approx 300m W of last site, just N of and below crest of ridge between road and a ravine that runs under the one lane bridge to join Silver Creek. Early it was