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 ) jansae Voss and Giarla, 2021 TYPE MATERIAL AND TYPE LOCALITY: ROM 118880, the holotype by original designation, consists of the skin, skull, postcranial skeleton, and frozen tissues of an adult male collected 42 km south and 1 km east of Pompeya Sur ( 0.68° S , 76.47° W ), Parque Nacional Yasuní, Orellana province , Ecuador . SYNONYMS: None. DISTRIBUTION: Marmosa jansae is currently known from the Amazonian lowlands of southeastern Colombia ( Putumayo ), eastern Ecuador ( Orellana , Pastaza ), and northeastern Peru ( Loreto , north of the Amazon) (Voss and Giarla, 2021: fig. 2). REMARKS: Specimens of Marmosa jansae were identified by Tate (1933) as M. germana germana or as M. g. rutteri , and subsequently collected specimens have often been identified as M. regina (e.g., by Hice and Velazco, 2012). Voss and Giarla (2021) provided a morphological description, measurement data, taxonomic comparisons, and other relevant information about this species.