Pug-nosed Anole (Anolis capito)

The Pug-nosed Anole is a small, slender lizard with a green body and a conspicuous black line that runs from the lower jaw through the eye and to the top of the head. The iris is orange with a black, round pupil. They are active during the day and sleep during the night. The individual below was seen in Yorkin near the frontier with Panama, where it stayed motionless for more than half an hour, while we illuminated it with lamps and took pictures from close distances.

Spectacled Caiman (Caiman crocodilus)

Caimans are easy to confuse with crocodiles, however both belong to different families in the Taxonomic hierarchy. While each species in both families has its specific characteristics, there are a few physical traits that differentiate species from each family:

  • Jaws: The Crocodile has a V-shape, while the Caiman and Alligator have a U-shape. This can be seen most notably from above or the front, not so easily from the side.
  • Teeth: In Caimans, due to the way the teeth are placed, the lower jaw’s teeth are not visible when the mouth is closed. Crocodiles do show both upper and lower teeth at all times.

The Spectacled Caiman in particular has become established and common in Costa Rica. Like most reptiles, being cold blooded, they bask in the sun during the morning to warm up their bodies, before going for a day’s hunt. During that time, they may lie motionless in almost any place, like fallen trees, beaches and riversides. Adults have a length between 1.4 and 2.5 meters.

Green Basilisk (Basiliscus plumifrons)

The Green Basilisk, also known as the Jesus Christ Basilisk due to its incredible feat to run on water, is one of the four species of the Basiliscus genus and of three species to occur in Costa Rica. The similar Striped Basilisk is brown with two yellow lines that run one through they, and a thicker one from below the eye, both ending in the upper portions of the back.

The male has a big crest that protudes both on the head, back and tail, which can be raised to signal that it is angry or defending its territory. Most of its body is green with light blue spots around the back, a color pattern that lets it camouflage very easily in foliage and vegetation, particularly during the morning when they bask in the sun to warm up their bodies. The female shows a lighter shade of green than the male. Their eyes are bright yellow. Both their fingers and toes are very large, with scales that can be extended, increasing the effective surface area of their feet and enabling them to run over water for short distances, up to 20 meters.

Striped Basilisk (Basiliscus vittatus)

The Common Basilisk, also known as the Jesus Christ Basilisk due to its incredible feat to run on water, is one of the four species of the Basiliscus genus and of three species to occur in Costa Rica. The similar Green Basilisk is (obviously) green, and the male has a big crest that protudes both on the head, back and tail, while the Striped Basilisk only has a crest on the head and a small ridge on the back.

It is brown with two yellow lines that run one through the eye, and a thicker one from below the eye, both ending in the upper portions of the back; this color pattern lets it camouflage very easily, particularly during the morning when they bask in the sun to warm up their bodies. Both their fingers and toes are very large, with scales that can be extended, increasing the effective surface area of their feet and enabling them to run over water for short distances, up to 20 meters.

Red Coffee Snake (Ninia sebae)

Red Coffee Snake is a non-venomous species of snakes, however most of the body is red, which warns potential predators not to come close. People ask me if this is a Coral or False Coral when they see the pictures, but it only bears a small resemblance. It lacks any ring patterns and is very slim, two traits that can help in identification. Its forehead is black, and it has a black mark on the back as well, just before the red body skin starts. With its elongated and thin body, one might think it is just a worm. It is found in Mexico and Central America.