Marmosa (Micoureus) rapposa Thomas, 1899

Voss, Robert S., 2022, An Annotated Checklist Of Recent Opossums (Mammalia: Didelphidae), Bulletin of the American Museum of Natural History 2022 (455), pp. 1-77 : 19

Marmosa (Micoureus) rapposa Thomas, 1899

TYPE MATERIAL AND TYPE LOCALITY: BMNH 98.11 .6.13, the holotype by original designation, consists of the skin and skull of an old adult female collected on the “Vilcanota River just north of Cuzco ” (= Huadquiña : 13.12° S, 72.65° W; 1500 m), Cusco department, Peru (Voss et al., 2020) .

SYNONYMS: budini Thomas, 1920 .

DISTRIBUTION: Marmosa rapposa is known from cloud forests along the eastern slopes of the Andes below about 2500 m in southeastern Peru, Bolivia, and northwestern Argentina, and from the dry-forested lowlands of eastern Bolivia, Paraguay, and southwestern Brazil (Voss et al., 2020: fig. 12).

REMARKS: Although Marmosa rapposa was one of several valid species previously synonymized with Marmosa regina (sensu Gardner and Creighton, 2008a) , specimens from Bolivia, Brazil, and Argentina were frequently identified as M. constantiae (e.g., by Anderson, 1997; Flores et al., 2007). Silva et al. (2019) were the first to distinguish this species—which they called M. budini —from M. constantiae , but M. rapposa is an older available name (Voss et al., 2020). Marmosa rapposa is closely related to M. parda and M. rutteri , which together comprise the Rapposa Group of the subgenus Micoureus .