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Golden Vizcacha Rat

Pipanacoctomys aureus

Classification

The golden viscacha rat or golden vizcacha rat (Pipanacoctomys aureus) is the single species of the genus Pipanacoctomys of the rodent family Octodontidae. It has 92 chromosomes and has been regarded as tetraploid (4x = 2n). This octodontid and its sister-species, the plains viscacha rat (Tympanoctomys barrerae) (2n = 102), may have arisen from the diploid mountain viscacha rat (Octomys mimax), (2x = 2n = 56) as a result of the doubling and subsequent loss of some chromosomes.

Distribution

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