Of the amphibious rodents, the pi-ea (Cavia aperea), mod, (C. rupestris), paca (Coelogenys paca), cutia (Dasyprocta aguti) and capybara (Hydrochoerus capybara) are noteworthy for their size and extensive range.
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.
True cavies, or couies (Cavia), are best known by the guineapig, a domesticated and parti-coloured race derived from one of the wild species, all of which are uniformly coloured.
In the true cavies, or couies, Cavia, the foreand hind-limbs are short and of subequal length, the ears are short and there is no tail.
The rodents are numerous and include most, if not all, of the Amazonian species - the capybara (Hydrochoerus capybara), cavia (C. aperea), paca (Coelogenys paca) and cutia (Dasyprocta aguti), all amphibious and having an extensive range.
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