Abstract
Abstract Didelphis aurita is an abundant South American didelphid. Chromatic disorders are rare and scarcely known in marsupials. We report and describe the occurrence of xanthochromism (yellowish coloration) in D. aurita, being the first record of this anomaly for opossums. The emergence of the xanthochromism correlated with the anthropogenic stress in urban-sylvatic interface suggests that chromatic disorders may serve as useful bioindicators of the health of wildlife in disturbed environments.
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