This rodent, Coelogenys (or Agouti) paca, together with one or two other tropical American species, represents a genus near akin to the agoutis and included in the family Caviidae.
Cavies in general, the more typical representatives of the Caviidae, are rodents with hooflike nails, four front and three hind toes, imperfect collar-bones, and the cheek-teeth divided by folds of enamel into transverse plates.
Capybaras belong to the family Caviidae, the leading characteristics of which are given in Rodentia.
as in the agoutis (Dasyproctidae), the milk-teeth are long retained,, while in the allied cavies (Caviidae) they are shed before birth.
In the family Caviidae, typified by the cavies (or guinea-pigs), may be included a large number of South and Central American rodents, among which the agoutis and pacas are often ranked as a family (Dasyproctidae) by themselves.
The Caviidae, in the present more comprehensive sense, include the giants of the rodent order.
AGOUTI, or Aguti, the West Indian name of Dasyprocta aguti, a terrestrial rodent of the size of a rabbit, common to Trinidad and Guiana, and classed in the family Caviidae.
Of the remaining families of the Simplicidentata, all are southern, the cavies (Caviidae), chinchillas (Chinchillidae), and degus (Octodontidae) being Central and South American, while the Capromyidae are common to southern America and Africa, and the Ctenodactylidae are exclusively African.
CAVY, a name commonly applied to several South American rodent animals included in the family Caviidae (see Rodentia), but perhaps properly applicable only to those belonging to the typical genus Cavia, of which the most familiar representative is the domesticated guinea-pig.
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