Griswold's Ameiva is a species of lizard in the genus Ameiva

Ameiva

Ameiva, commonly called jungle-runners, is a genus of whiptail lizards that belongs to the family of Teiidae. Member species are found in South America and throughout various islands of the Caribbean.-Species:...

. It is endemic to the Caribbean

Caribbean

The Caribbean is a crescent-shaped group of islands more than 2,000 miles long separating the Gulf of Mexico and the Caribbean Sea, to the west and south, from the Atlantic Ocean, to the east and north...

 nation of Antigua and Barbuda

Antigua and Barbuda

Antigua and Barbuda is a twin-island nation lying between the Caribbean Sea and the Atlantic Ocean. It consists of two major inhabited islands, Antigua and Barbuda, and a number of smaller islands...

, where it is found on both islands. It is also known as the Antiguan Ameiva or the Antiguan Ground Lizard.

It is common on Barbuda

Barbuda

Barbuda is an island in the Eastern Caribbean, and forms part of the state of Antigua and Barbuda. It has a population of about 1,500, most of whom live in the town of Codrington.-Location:...

, and more common on the offshore islands of Antigua

Antigua

Antigua , also known as Waladli, is an island in the West Indies, in the Leeward Islands in the Caribbean region, the main island of the country of Antigua and Barbuda. Antigua means "ancient" in Spanish and was named by Christopher Columbus after an icon in Seville Cathedral, Santa Maria de la...

than on that main island. Populations on Barbuda are dark brown with irregular, cream-colored splotches. Its flanks are pale blue-green and tan, with black spots and markings. Its ventral surface is gray with black on its chest.