Pseudalsophis darwini, otherwise known as Darwin's racer, is a species of snake of the family Colubridae.
This species of snake is named after the famous naturalist Charles Darwin, who described many species in the Galapagos Islands and discovered the theory of evolution.
The snake is endemic to Fernandina Island and Isabela Island in the Galápagos Islands, as well as a small islet nearby, Isla Tortuga.[1]