 Jamaica is also home to about 50 species of reptiles, the largest of which is the American crocodile; however, it is only present within the Black River and a few other areas.Lizards such as anoles, iguanas and snakes such as racers and the Jamaican boa (the largest snake on the island), are common in areas such as the Cockpit Country.None of Jamaica's eight species of native snakes is venomous.