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 Marmosops ( Marmosops ) incanus (Lund, 1840) TYPE MATERIAL AND TYPE LOCALITY: No type material was designated in the original description, but four specimens in the Zoological Museum of the University of Copenhagen known to have been collected by Lund are assumed to be syntypes . Of these, PVLund L14 and PVLund L15 consist only of skulls, whereas PVLund 223 consists only of a skin. The most anatomically complete is PVLund 224 (skin and skull), but no purpose is served by selecting a lectotype at this time. SYNONYMS: bahiensis Tate, 1931 ; scapulatus Burmeister, 1856. DISTRIBUTION: Marmosops incanus is found primarily in the Atlantic Forest biome of Brazil , from the state of Sergipe (Calazans and Bocchiglieri, 2020) southward to Paraná (Mustrangi and Patton, 1997: fig. 6). REMARKS: Mustrangi and Patton’s (1997) analysis of mtDNA sequence data remains the only phylogeographic study of this species, which includes several impressively divergent haplogroups. The same authors also illustrated and discussed morphological characters that distinguish Marmosops incanus from its broadly sympatric congener, M. paulensis . Phylogenetic analyses of multilocus sequence datasets either recover M. incanus as the sister taxon to all other members of the nominotypical subgenus ( Díaz-Nieto et al., 2016a , 2016b ) or as the sister taxon of M. paulensis (see Amador and Giannini. 2016).