Oryzomys angouya

rodent

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July 16, 2026

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Oryzomys angouya is a species of rodent belonging to the genus Oryzomys, commonly known as rice rats. These nocturnal rodents are found in eastern Brazil, Paraguay, and southern Argentina. Oryzomys angouya is among the largest species in its genus, with a body length of up to 20 cm and a tail that is significantly longer than its body.1

Rice rats, in general, are characterized by soft fur, typically ranging from tawny to grayish brown on their upperparts and paler underneath. Their tails are sparsely haired. While the genus Oryzomys was first described in 1858, new species continue to be discovered, particularly in South America.1

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rice rat
…tail; among the largest is O. angouya, found in eastern Brazil, Paraguay, and southern Argentina, with a body length up to 20 cm and a much longer tail.
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…tail; among the largest is O. angouya, found in eastern Brazil, Paraguay, and southern Argentina, with a body length up to 20 cm and a much longer tail.
Read More