“…Other Interfluvial Records: None. Identification: This tiny marsupial, long unknown to science and only recently recognized as the sole survivor of an ancient lineage, is still represented by fewer than two dozen museum specimens despite its wide Amazonian distribution and apparent lack of habitat specificity (Hershkovitz, 1992;Voss et al, 2001;Jansa and Voss, 2005;Astúa, 2006;Hice and Velazco, 2012;Catzeflis, 2018). Our two specimens consist of the damaged skull of a juvenile that retains the diagnostically reduced milk dentition (Voss et al, 2001: figs.…”