After Basiliscus plumifrons, this was the species that I second-most wanted to see in Costa Rica. It's a common species, but I had missed them on my previous visits. Our excellent guide Jonathan Sequeira spotted this small snake from at least twenty yards away. Like many vipers, they tend to hold their ground when confronted, so they're generally good photographic subjects. But the trail was narrow, it was raining pretty hard, and there was a line of people waiting to see this li'l guy, so I just got a couple of quick shots.