The Jamaican coney (''Geocapromys brownii''), also known as the Jamaican hutia or Brown's hutia, is a small, endangered, rat-like mammal found only on the island of

Jamaica Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of His ...

. About the size of a rabbit, it lives in group nests and is active at night to feed on fruit, bark, and other plant matter. It is currently endangered by habitat loss, hunting, and non-native species; it persists only in remote mountains. The Jamaican coney belongs to the hutia subfamily (

Capromyinae Hutias (known in Spanish as jutía) are moderately large cavy-like rodents of the subfamily Capromyinae that inhabit the Caribbean islands, with most species restricted to Cuba and Hispaniola. Twenty species of hutia have been identified, but a ...

) and is the only surviving native mammal on Jamaica.

Description

The Jamaican coney is generally about the size of a

cottontail rabbit Cottontail rabbits are the leporid species in the genus ''Sylvilagus'', found in the Americas. Most ''Sylvilagus'' species have stub tails with white undersides that show when they retreat, giving them their characteristic name. However, this ...

, and mature adults usually weigh between 1 and 2 kg.' It is reddish brown/yellowish brown in colour, and ranges in size from about 330 to 445 mm in length. It has the smallest tail of all the species in the genus (approximately 45mm). It has a large head (the largest in the genus), short legs, short tail, and short ears and neck, which gives it a somewhat squat appearance. It has large, robust

incisors Incisors (from Latin ''incidere'', "to cut") are the front teeth present in most mammals. They are located in the premaxilla above and on the mandible below. Humans have a total of eight (two on each side, top and bottom). Opossums have 18, wh ...

and

hypsodont Hypsodont is a pattern of dentition with high-crowned teeth and enamel extending past the gum line, providing extra material for wear and tear. Some examples of animals with hypsodont dentition are cows and horses; all animals that feed on gritt ...

cheekteeth.

Distribution and habitat

''G. brownii'' only occurs in Jamaica, mainly in the more remote locations and mountainous regions. They have been found from as far east as the John Crow and Blue Mountains of

Portland Portland most commonly refers to: * Portland, Oregon, the largest city in the state of Oregon, in the Pacific Northwest region of the United States * Portland, Maine, the largest city in the state of Maine, in the New England region of the northeas ...

and the St. Thomas Parishes in the east of the island, to as far west as the Harris Savannah and the Brazilletto Mountains in

Clarendon Parish, Jamaica Clarendon is a parish in Jamaica. It is located on the south of the island, roughly halfway between the island's eastern and western ends. Located in the county of Middlesex, it is bordered by Manchester on the west, Saint Catherine in the eas ...

Ecology and behaviour

Jamaican hutias are almost exclusively nocturnal mammals. As night foragers, they feed on a large variety of food sources, including fruits, exposed roots, bark, and the foliage from many different plant species. The

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

has classified it as an

endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

. Observations of captive specimens note that Jamaican hutias do not build their own nests. They have strong social interactions between related individuals, which can include mutual grooming, play, and soft vocalizations when not in physical contact which each other. They have a semi-plantigrade stance, and are excellent climbers and jumpers, often using their front incisors for grip and leverage.

Reproduction

Little is known of how the Jamaican hutia reproduces in the wild, but observations from captive specimens show that the females reach maturity in about one year, while males tend to reach maturity at a somewhat older age. Females usually give birth and average of 2 litters per year, with about two offspring per litter. The average gestation period is 123 days. The young are born extremely precocial, and can walk at birth as well as eat adult foods within about 30 hours of birth.

References

Hutias Geocapromys Endemic fauna of Jamaica Mammals of Jamaica Coney, Jamaican Mammals described in 1829 Taxa named by Johann Baptist Fischer {{rodent-stub