Cuban Rock Iguana

Cyclura nubila is a large iguanid lizard of Cuba and its surrounding islands. It is the second-largest of the West Indian rock iguanas after the blue iguana and one of the largest lizards in the Caribbean. Snout-vent length averages 40 cm, and males of 1.6 m total length have been recorded at the wildlife sanctuary within the Guantanamo Bay Naval Base, with females about two-thirds that size, so sexual dimorphism is pronounced. Males have enlarged femoral pores on the thighs, used to release pheromones that attract mates and mark territory, and their skin ranges from dark grey to brick red. The tail is thick and the jowls are spiked. It occupies rocky coastal areas of mainland Cuba and as many as 4,000 surrounding islets. It is strongly herbivorous, eating purslane, prickly pear, black mangrove, Harrisia cacti and grasses; colonies of nematodes, thought to aid digestion of this high-cellulose diet, occupy half the contents of its large intestine. Females guard their nest sites, and one population nests in holes excavated by Cuban crocodiles. Captive breeding and other conservation programmes have bolstered its numbers.

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The Cuban Rock Iguana lives 60-70 years.

The Cuban Rock Iguana grows to Average snout-vent length 40cm; males have been recorded at 1.6m total length, with females about two-thirds that size.