Chacodelphys formosa (Shamel, 1930) TYPE MATERIAL AND TYPE LOCALITY: USNM 236330, the holotype by original designation, consists of the skin and skull of a young adult male collected at Estancia Linda Vista (25.22° S, 59.78° W; ca. 100 m) on the Riacho Pilagá, Formosa province, Argentina. SYNONYMS: muscula Shamel, 1930 (preoccupied). DISTRIBUTION: All known specimens of Chacodelphys formosa are from Chacoan landscapes in northern Argentina (Chaco, Formosa, and Misiones; Teta et al., 2006; Teta and Pardiñas, 2007) REMARKS: Chacodelphys formosa is currently known from just a handful of specimens, most of which were recovered from owl vomitus.

Published as part of Voss, Robert S., 2022, An Annotated Checklist Of Recent Opossums (Mammalia: Didelphidae), pp. 1-77 in Bulletin of the American Museum of Natural History 2022 (455) on page 41, DOI: 10.1206/0003-0090.455.1.1, http://zenodo.org/record/7161371