Rhipidomys macrurus Gervais 1855

Rhipidomys macrurus Gervais 1855, Expedition dans les parties centrales de l'Amerique dus Sud, Zoologie, Tome 1: 111.

Type Locality: Brazil, Goiás State, Crixás.

Vernacular Names: Long-tailed Rhipidomys.

Synonyms: Rhipidomys cearanus Thomas 1910 .

Distribution: Gallery and semideciduous forests of the cerrado-caatinga biomes (Ceará southwestwards to E Mato Grosso and Minas Gerais), C Brazil.

Discussion: R. leucodactylus section sensu Tribe (1996). Initially reassociated as a subspecies of R. venezuelae (Gyldenstolpe, 1932) and later of R. mastacalis (Cabrera, 1961; Musser and Carleton, 1993). Resurrected as a species by Tribe (1996), containing those populations with 2n = 44 and low fundamental numbers, 48-51 (Svartman and Almeida, 1993; Zanchin et al., 1992a). The high-FN specimens reported by Zanchin et al. (1992a) as the species cearanus were reidentified by Tribe (1996) as R. mastacalis .