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Hispaniolan hutia
The Hispaniolan hutia (''Plagiodontia aedium'') is one of several hutia (also called zagouti, and ''jutía'' in Spanish) species to have inhabited at some time the island of Hispaniola (island shared by Haiti and the Dominican Republic). The ''P. aedium'' is the only scientifically confirmed extant species of the genus ''Plagiodontia''; other species are either extinct or being debatedly catalogued as ''P. aedium'' subspecies. The name ''Plagiodontia'' means "oblique tooth" in Greek.
==Description and behaviour==
Head and body length is about and tail length is about . The listed adult weight as . In the species ''P. hylaeum'', head and body length is and tail length is 125–45 mm. Judging from the skeletal remains, the largest species in the genus is ''P. ipnaeum'' (or Samaná hutia) and the smallest is ''P. spelaeum''. In the living species, the short, dense pelage is brownish or grayish on the upper parts and buffy on the underparts. The tail is scaly and practically naked. Both the forefoot and the hind foot have five digits, all armed with claws except the thumb, which has a short, blunt nail. Females have three pairs of lateral thoracic mammae.
Captive hutias have been observed to be nocturnal and arboreal and to use nest boxes placed high off the ground. Wild ''P. aedium'' are reported to be active only at night, to hide during the day, to feed mainly on roots and fruits, and to live in male-female pairs. Reports also stated that three or four individuals commonly occupy the same burrow system. Specimens of ''P. hylaeum'' were caught in December in hollow trees near a lagoon; four pregnant females each contained a single embryo. Purportedly, captive female ''P. aedium'' have an estrous cycle of 10 days, a gestation period of 119 days, and apparently a single offspring. Recorded gestation has been 123–150 days and litter sizes of one to two young in this species, which are highly precocial, much unlike most rodents, which are totally helpless when born. A captive ''P. aedium'' was still alive after 9 years and 11 months. Individuals communicate through soft, almost bird-like chirps.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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