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 7161371 Genus Lutreolina Thomas, 1910 TYPE SPECIES: Didelphis crassicaudata Desmarest, 1804 , by monotypy. SYNONYMS: None. REMARKS: Voss and Jansa (2009) provided an emended generic description based on Lutreolina crassicaudata , but their morphometric descriptors did not include the substantially smaller dimensions of L. massoia , which was described several years later. Two species are currently recognized.