Eyelash Viper
Bothriechis schlegelii

f11 @ 1/500s, ISO:1250, Nikon D3S w 105mm macro

"Bothriechis schlegelii," Wikipedia, the free encyclopedia. The eyelash viper, is a venomous pit viper species found in Central and South America. Small and arboreal, this species is characterized by a wide array of color variations, as well as the superciliary scales above the eyes. Like all pit vipers, it is solenoglyphous, having large, hypodermic needle-like fangs in the front of the upper jaw that fold back when not in use, and has heat sensitive organs, or pits, located on either side of the head between the eye and nostril. Its most distinguishing feature, and origin of its common name, is the set of modified scales above the eyes that look much like eyelashes. The eyelashes are thought to aid in camouflage, breaking up the snake's outline among the foliage where it hides. B. schlegelii occurs in a wide range of colors, including red, yellow, brown, green, even pink, as well as various combinations thereof. It often has black or brown speckling on the base color. No external features distinguish the two sexes.
El Valle de Anton, Panama