Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Greene, H.
1990
November 5 on the forest trail, getting a big ? Teptolepis on a shrub
(continued) (see catalogue for details on frog captures) just out of camp.
Took #30 minutes to get to the stream since I kept checking
trailside plants for snakes and sleeping lizards - nothing.
Waded upstream from the second crossing (leaving a large
red flag so as not to miss the little trail in the way
rocks! There are scattered Hyperdius calling, and several
Rara angloensis and cf. Petropedetes in ferns growing from
mossy boulders in the fast ripples. Walking in the stream
and catching them I think about Dipsadoboa in its
powder blue green livery, searching stream banks for Rara
angolensis - surely the color (which to me is strikingly
reminiscent of Boiga cyanea of SE Asia and Bothriechis
vicitor of Central America) is cryptic when the snake is
asleep on vegetation in the daytime. That is a different
sleeping strategy than comparable frog-eating snakes in
the neotropics (e.g., Leptodeira deepsi in Honduras), but
maybe at this altitude the snakes need to be exposed in the
daytime even though they as nocturnal, in order to
thermoregulate and digest prey. Just as I was returning
to the trail, looked up to see a little tree frog perpendicular
to the small branch on which it sat, # 3 m over the stream.
That is fun to see, and brought back very pleasant
memories of Costa Rica. On the trail back, encountered
Jens and Bob who had found a Dipsadoboa # 8' above
the stream on a vertical, moss covered branch,
extended and motionless - as Jens called to Bob, the