The Cuban crocodile (Crocodylus rhombifer) is a small species (2.4 metres average length) of crocodile found only in Cuba's Zapata Swamp and the Isle of Youth, and highly endangered, though it formerly ranged elsewhere in the Caribbean. Fossils of this species have been found in the Cayman Islands and the Bahamas.
This species has numerous interesting characteristics that set it apart from other crocodilians, such as its brighter adult colors, rougher, more 'pebbled' scales, and long, strong legs. This species is the most terrestrial of crocodiles, and also possibly the most intelligent. A colony of this species at Gatorland, Florida has also exhibited what is strongly suspected to be pack-hunting behavior, which has prompted much interest in the species, usually kept singly (especially so after such reports).
The Cuban crocodile appears to favor freshwater habitat such as swamps, marshes, and rivers and rarely swims in salt water.
Source: en.wikipedia.org/wiki/Cuban_crocodile - 26.09.2011
The Cuban Crocodile only lives in a marsh, measuring 300 km².