Trimorphodon tau — Mexican Lyresnake
Some other names for this species:
Mexican Lyre Snake, Collared Lyresnake
Subspecies I've seen:
T. t. tau
Trimorphodon tau tau — Mexican Lyresnake
My first new snake of the trip. This handsome adult had been found by Rob and Nicholas Kreutzer a short time before our car pulled up. It was not interested in posing. Mostly it wanted to climb up into the air, which doesn't seem particularly useful, but which is something I have seen other snake species do.
Little baby Mexican Lyresnakes have higher-contrast patterns than adults. They are also cuter.
Lyresnakes are mildly venomous, though not venomous enough to be a problem for humans, unless you happen to be particularly sensitive. Even then, a bite wouldn't lead to death or amputation or anything like that, just perhaps some pain and swelling. I've met quite a few of them, and none have shown the slightest inclination to biting. But it does make me think twice about harassing them too much for photos. This particularly large individual would not hold its head still, and I gave up trying to make it do so pretty quickly.
One final Mexican Lyresnake for the road. Also not interested in holding a pose. The baby ones were much more cooperative.
- Heimes, P. 2016. Snakes of Mexico
- Rorabaugh, J.C., Lemos-Espinal, J.A. 2016. A Field Guide to the Amphibians and Reptiles of Sonora, Mexico