An Annotated Checklist Of Recent Opossums (Mammalia: Didelphidae) Author Voss, Robert S. text Bulletin of the American Museum of Natural History 2022 2022-04-04 2022 455 1 77 https://bioone.org/journals/bulletin-of-the-american-museum-of-natural-history/volume-455/issue-1/0003-0090.455.1.1/An-Annotated-Checklist-of-Recent-Opossums-Mammalia-Didelphidae/10.1206/0003-0090.455.1.1.full journal article 10.1206/0003-0090.455.1.1 0003-0090 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 .