Abstract
Abstract Reports of albinism are available for several groups of mammals, including the secondmost diverse family of Rodentia, Cricetidae. Nonetheless, in South America, where cricetid rodents are the most representative of the small mammals, both in richness and abundance, few records of albinism exist. Here, we document the first case of albinism for the cricetid Oxymicterus dasytrichus, and compare the skin, hair and skull morphology of the albino with specimens of the regular coat color pattern of O. dasytrichus collected in the state of Minas Gerais, where the albino specimen was collected. Despite the marked external morphological differences observed in the hair and skin colors, cranial measurements indicate that no salient differences can be observed when comparing particular measures for the skulls of albino and non-albino specimens, neither through a multivariate statistical analysis. We also briefly discuss the relative rarity of complete albinism in Neotropical rodents.
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