Monodelphis (Pyrodelphys) emiliae (Thomas, 1912)

Voss, Robert S., 2022, An Annotated Checklist Of Recent Opossums (Mammalia: Didelphidae), Bulletin of the American Museum of Natural History 2022 (455), pp. 1-77 : 29-30

Monodelphis (Pyrodelphys) emiliae

(Thomas, 1912)

TYPE MATERIAL AND TYPE LOCALITY: BMNH 11.12.22.16, the holotype by original designation, consists of the skin and skull of an adult male collected at Boim (2.82° S, 55.17° W), on the left bank of the Rio Tapajós, Pará, Brazil. 8

SYNONYMS: None.

DISTRIBUTION: Monodelphis emiliae occurs in lowland rainforest from eastern Peru (Loreto, Ucayali, Cusco, and Madre de Dios departments; Pacheco et al., 2020) and northern Bolivia (Pando department) eastward along the south

8 Pine and Handley (1984) referred to this specimen as a subadult, but P3 is fully erupted.

bank of the Amazon to the left bank of the Tocantins in Pará state, Brazil (Pine and Handley, 2008: map 41).

REMARKS: See Pavan et al (2016) for an emended description and morphological comparisons with members of other subgenera. Measurement data from Peruvian specimens of Monodelphis emiliae were tabulated by Voss et al. (2019), who also remarked on postmortem pelage-color changes and unusual examples of cranial-character polymorphisms. As currently recognized, this species includes two cytochrome b haplogroups—one from eastern Amazonia and the other from western Amazonia—with a mean uncorrected sequence difference of 11.4% ( Pavan et al., 2014), but comparisons of eastern and western Amazonian specimens have yet to reveal any consistent morphological differences ( Voss et al., 2019).