478.

Marinho’s Rice Rat

Cerradomys marinhus

French: Cerradomys des Marinho / German: Marinho-Cerradomaus / Spanish: Rata arrocera de Marinho

Other common names: Marinho’s Cerradomys, Marinho's Oryzomys

Taxonomy. Oryzomys marinhus Bonvicino, 2003, Fazenda Sertao Formoso (= Fazenda Jucurutu), altitude around 775 m, Jaborandi municipality, Goias, Brazil.

This species is monotypic.

Distribution. Tocantins, Bahia, Goias, and Minas Gerais states, EC Brazil.

Descriptive notes. Head-body 153-179 mm, tail 198-212 mm, hindfoot 38-43 mm. No specific data are available for body weight. Dorsum of Marinho’s Rice Rat is brown, lined with black. Venter is grayish, buffy, or yellowish gray. Tail is bicolored and scarcely hairy. Skull is heavily built, large, and robust. Mesopterygoid fossa is fully ossified or with narrow sphenopalatine vacuities. Incisors are opisthodont, molars are pentalophodont, and M, has reduced or absent mesolophid. Chromosomal complement is 2n = 56, FN = 54.

Habitat. Cerrado biome in flooded grasslands and seasonally flooded semideciduous forests.

Food and Feeding. No information.

Breeding. Female Marinho’s Rice Rats with 2-4 embryos were pregnant during dry and rainy seasons.

Activity patterns. Marinho’s Rice Rat is probably terrestrial.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Data Deficient on The IUCN Red Lust.

Bibliography. Bonvicino (2003), Carmignotto & Aires (2011), Carmignotto et al. (2014), Percequillo (2015b), Percequillo, Hingst-Zaher & Bonvicino (2008).