Cerradomys marinhus (Bonvicino, 2003)

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 204-535 : 447

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).

Figures

458. Forest Small Rice Rat (Macroryzomys minutus), 459. Highland Small Rice Rat (Microryzomys altissimus), 460. Peruvian Rice Rat (Oreoryzomys balneator), 461. White-throated Montane Forest Rat (Drymoreomys albimaculatus), 462. Gray Rice Rat (Eremoryzomys polius), 463. Medium-tailed Rice Rat (Eremoryzomys mesocaudis), 464. Lund’s Water Rat (Lundomys molitor), 465. Paraguayan Rice Rat (Sooretamys angowya), 466. Brazilian False Rice Rat (Pseudoryzomys simplex), 467. Venezuelan Marsh Rat (Holochilus venexuelae), 468. Amazonian Marsh Rat (Holochilus sciureus), 469. Chacoan Marsh Rat (Holochilus chacarius), 470. Brazilian Marsh Rat (Holochilus brasiliensis), 471. Crafty Marsh Rat (Holochilus vulpinus), 472. Lagiglia’s Marsh Rat (Holochilus lagigliai), 473. Langguth’s Rice Rat (Cerradomys langguthi), 474. Vivo’s Rice Rat (Cerradomys vivoi), 475. Maracaju Rice Rat (Cerradomys maracajuensis), 476. Lindbergh's Rice Rat (Cerradomys scotti), 477. Akroa Rice Rat (Cerradomys akroai), 478. Marinho’s Rice Rat (Cerradomys marinhus), 479. Terraced Rice Rat (Cerradomys subflavus), 480. Goytaca Rice Rat (Cerradomys goytaca), 481. Ucayali Water Rat (Amphinectomys savamis), 482. Trinidad Water Rat (Nectomys palmipes), 483. Magdalena Water Rat (Nectomys magdalenae), 484. Western Amazonian Water Rat (Nectomys apicalis), 485. South American Water Rat (Nectomys rattus), 486. Atlantic Water Rat (Nectomys squamipes)

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