Sibon nebulatus
—
Cloudy Snail-eating Snake


We found this snake on a rainy night crossing the new paved road from the Pan-American Highway to the coast. We captured it and took pictures the next day. These snakes eat snails and slugs almost exclusively, so rainy nights are the best time to find them. Fortunately, there are a lot of rainy nights in the tropics.
This snake was photographed on a herping trip with GreenTracks. Here is a complete list of the species we found on this GreenTracks trip.

This young snake was much smaller and thinner than the adult I saw in 2001. It was hanging around Evergreen Lodge at night, no doubt looking for tasty snails and slugs.



It had been a long time since I had seen one of these big-eyed snail-eaters. I appreciated the willingness of this beautiful snake to hold a pose.
Here is a list of all the reptiles and frogs I saw on this trip to Guatemala.
Online references:
- Sibon nebulatus account on The Reptile Database
- Sibon nebulatus account on iNaturalist
Printed references:
- Hayes, M. P., Pounds, J. A., Timmerman, W. W. 1989. An Annotated List and Guide to the Amphibians and Reptiles of Monteverde, Costa Rica
- Köhler, G. 2008. Reptiles of Central America, 2nd Edition
- Lee, J. C. 2000. A Field Guide to the Amphibians and Reptiles of the Maya World: The Lowlands of Mexico, Northern Guatemala, and Belize
- Lee, J. C. 1996. The Amphibians and Reptiles of the Yucatán Peninsula
- Savage, J. M. 2002. The Amphibians and Reptiles of Costa Rica
- Savage, J. M., Villa R., J. 1986. Introduction to the Herpetofauna of Costa Rica