Catalogue of the Marsupialia and Monotremata in the collection of the British Museum (Natural History)

A Revision of the Didelphid Marsupial Genus Marmosa Part 1. The Species in Tate's ‘Mexicana’ and ‘Mitis’ Sections and Other Closely Related Forms

“…TAXONOMIC HISTORY: The first literature reference to a specimen of Marmosa isthmica is in Thomas (1880), who identified his material as Didelphys murina. Other specimens were subsequently identified by authors as either murina or zeledoni (e.g., by Alston, 1880; Thomas, 1882bThomas, , 1888Allen, 1912). Shortly after Goldman (1912) described Marmosa isthmica based on a single specimen from the Canal Zone of central Panama, Anthony (1916) reported a large series from the eastern Panamanian province of Darién.…”

Species Limits and Phylogenetic Relationships in the Didelphid Marsupial Genus Thylamys Based on Mitochondrial DNA Sequences and Morphology

“…By contrast, morphological comparisons between T. pusillus and T. pallidior, although discussed in substantive detail by , merit additional comment based on the larger samples of both species examined for this study. Bertoni's (1914Bertoni's ( , 1939 cited reports of ''Marmosa pusilla'' from Puerto Bertoni in Alto Paraná, Paraguay is unknown, but Bertoni may have used pusilla in the sense of Thomas (1888Thomas ( , 1900, who applied this epithet to specimens that are now placed in Cryptonanus and Gracilinanus (see ).…”

A Revised Subgeneric Classification of Short-Tailed Opossums (Didelphidae:Monodelphis)

“…Subgenus Microdelphys Burmeister, 1856 Type species: Monodelphis tristriata (Illiger, 1815), an objective junior synonym of M. americana (Müller, 1776), by subsequent designation (Thomas, 1888b Thomas, 1899;trilineata Lund, 1840;tristriata Illiger, 1815;and umbristriata Miranda-Ribeiro, 1936); iheringi Thomas, 1888a; scalops Thomas, 1888a (including theresa Thomas, 1921); and gardneri Solari et al, 2012. Diagnosis: Dorsal body pelage usually marked with dark longitudinal stripes (but uniformly reddish in mature males of M. americana, and with grayish midbody contrasting with reddish head and rump in mature males of M. scalops); ventral pelage uniformly colored, without self-whitish median markings. Mammae 4-1-4 = 9 to 8-1-8 = 17, all abdominalinguinal or abdominal-inguinal and pectoral.…”