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 Lutreolina crassicaudata (Desmarest, 1804) TYPE MATERIAL AND TYPE LOCALITY: No type material is known to exist. The species is based on Felix de Azara’s description of two specimens that he examined from eastern Paraguay ( Voss et al., 2009a ). SYNONYMS: bonaria Thomas, 1923; crassicaudis Olfers, 1818; ferruginea Larrañaga, 1923; lutrilla Thomas, 1923; macroura Desmoulins, 1824; paranalis Thomas, 1923; travassosi Miranda-Ribeiro, 1936; turneri Günther, 1879. DISTRIBUTION: The distribution of Lutreolina crassicaudata is famously disjunct, with one population in the Llanos and adjacent savannas of northern South America (eastern Colombia , Venezuela , and Guyana ) and a second in tropical and subtropical open habitats of eastern Bolivia , southern Brazil , Paraguay , Uruguay , and northern Argentina (Stein and Patton, 2008b: map 9). REMARKS: Voss and Jansa’s (2009) description of Lutreolina was based exclusively on L. crassicaudata , and so serves as a description of the species as well. By convention, the northern population (in Colombia , Guyana , and Venezuela ) is known as L. c. turneri , whereas the southern population is referred to L. c. crassicaudata . Although other subspecies have been recognized based on specimens from southern Brazil and northern Argentina , analyses of cytochrome b sequence data ( Martínez-Lanfranco et al., 2014 ) suggest remarkably little phylogeographic structure within what is currently considered the nominotypical form.