Cerradomys subflavus (Wagner, 1842)

Percequillo, Alexandre R., Hingst-Zaher, Erika & Bonvicino, Cibele R., 2008, Systematic Review of Genus Cerradomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae: Oryzomyini), with Description of Two New Species from Eastern Brazil, American Museum Novitates 2008 (3622), pp. 1-48 : 22-23

Cerradomys subflavus (Wagner, 1842)

Mus vulpinus Lund, 1840: 279 ; type locality: ‘‘Lagoa Santa, Minas Gerais, Brazil’’. Pre-occupied by Mus vulpinus Brants 1827 , a name associated with genus Holochilus .

Hesperomys subflavus Wagner, 1842: 362 ; type locality: ‘‘ Brasilia’ ’, subsequently restricted to ‘‘ Lagoa Santa, Minas Gerais, Brazil’ ’ by Cabrera (1961).

Mus vulpinoides Schinz, 1845: 193 ; renaming of Mus vulpinus Lund, 1840 .

Calomys laticeps: Winge, 1888: 51 (erroneous name combination; see Musser et al., 1998: 263, 298).

Oryzomys subflavus: Thomas, 1901: 528 .

C[erradomys] subflavus: Weksler et al., 2006: 8 .

TYPE LOCALITY: Lagoa Santa , Minas Gerais, Brazil ; 19 ° 379S, 43 ° 539W; 760 m.

GEOGRAPHIC DISTRIBUTION: Populations currently assigned to Cerradomys subflavus (figs. 1, 2) are distributed throughout the Brazilian states of Goiás, Minas Gerais , and São Paulo, usually associated with the interior highlands in Minas Gerais and São Paulo, and with the Central Brazilian Highland in Goiás .

DIAGNOSIS: C. subflavus is characterized by medium to large body and tail size (HBL range, 120–179 mm; TL range, 150–210 mm; table 3), small feet (HF range, 31–34 mm), dorsal body color coarsely grizzled, buffy to orange brown, head color grayish, ventral body color grayish, skull (figs. 3, 5) with deep rostral fossa, mesopterygoid fossa with large and wide sphenopalatine vacuities (exposing orbitosphenoid), deep, narrow, and long palatal fossae (complex posterolateral palatal pits), eustachian tube short with a distinct medial bony lamina dorsal to carotid canal, central cartilaginous digit of distal baculum reduced, and a unique chromosomal formula (2n 5 54, FN 5 62).

KARYOLOGY: The Cerradomys subflavus karyotype shows 2n 5 54 and FN 5 62 (table 7, fig. 10). The autosome complement comprises five biarmed pairs (three large and two small) and 21 small acrocentric pairs. The X chromosome is a medium acrocentric and the Y, a small acrocentric ( Bonvicino et al., 1999; Langguth and Bonvicino, 2002).

NATURAL HISTORY: The Brazilian populations of Cerradomys subflavus are known to occur at the mesic habitats of Cerrado, in gallery forest and ‘‘cerradão’’, as well the patches of semideciduous forest of Brazilian highlands, and the coastal Atlantic Forest. On the other hand, museum tags of specimens from the Brazilian locality of Anápolis, Goiás, describe C. subflavus habitats as: ‘‘high dry grass, edge woods and farm’’; ‘‘Brush and high grass-dry-hill-edge of woods-farm’’; ‘‘edge of cane fields and woods-dry’’; ‘‘edge of woods and dry grass’’; ‘‘high dry grass-near woods’’; ‘‘edge of corn field and woods’’; ‘‘heavy grass, open woods, small stream’’; ‘‘Edge of high grass, woods, and farms’’; ‘‘Dry, high grass on hill-50 y[ar]ds. from woods’’; ‘‘Capim seco [5 Dry grass], near woods + farm, farm’’ (R.M. Gilmore, in museum tags at AMNH and MN). Cerradomys subflavus is predominantly a terrestrial species ( Stallings, 1989), although it might eventually be captured in trees ( Fonseca and Kierulff, 1989).

SPECIMENS EXAMINED: BRAZIL: BAHIA: Nova Viçosa: M: LV-MW 13. GOIÁS: Anápolis: M: AMNH 134633, 134640, 134655, 134660, MN 4338, 4345; F: AMNH 134629, 134636, 134650, 134785, MN 4347. MINAS GERAIS: Águas Claras, Ravena: M: UFMG 684, 686. BR 262, km 580, Ibiá: M: UnB 837. BR 262, km 609, Campos Altos: M:

UnB 815, 817, 821; F: UnB 836, 839. Belo Horizonte (includes Pampulha e Campus UFMG): M: UFMG 913, UFMG 55. Caqui, Barra Longa: M: UFMG 567. COPASA, Área de Proteção Ambiental Serra Azul, Mateus Leme: M: UFMG 1521, 1532–3; F: UFMG 1528, 1534. Coromandel: F: UFMG 6. E.P.D.A. PETI, Santa Bárbara: F: UFMG 85; I: UFMG 75. Fazenda Barreiro Grande, Pompeu: M: UFMG 459; F: UFMG 456. Fazenda EPAMIG, Governador Valadares: F: UFMG 383; I: UFMG 381–2. Fazenda Esmeralda, Rio Casca: M: UFMG 1200; F: UFMG 1201. Fazenda Triângulo Formoso, Buritizeiros: M: UFMG 1; F: UFMG 3. Lagoa Santa (includes Fazenda Cavaia and Sítio Bairro Quebra): M: UFPB 1921, 2363–4, 2699, 2706, 3017; F: UFPB 1919, 2062, 2365, 2700, 2710, BMNH 88.1.9.6; I: UFPB 1927. Mata do Eixo, Uberlândia (Usina Hidroelétrica de Nova Ponte): M: UFMG 1744; F: UFMG 1748, 1750. NW Nova Ponte (includes Mata do Edésio and Mata do João Lindolfo): M: UFMG 2869, 2870. Ouro Preto: F: UFMG 602. P. E. Rio Doce, 13 km E Marliéria (includes P. E. Rio Doce, Marliéria): M: UFMG 570, YL 97, 1120; F: UFMG 1152, UFMG 2858. P. E. Rio Doce (includes P. E. Rio Doce and P. E. Rio Doce, Coronel Fabriciano): M: UFMG 139. P. E. Rio Preto, 15 km S São Gonçalo do Rio Preto: M: UFMG 2852-3; F: UFMG LPC 70, YL 68. Prados, Biquinha: M: UFMG 448; F: UFMG 449. Santa Luzia (includes Fazenda Baroneza e Rio Bagaço): M: UFMG 432, 444, 445; F: UFMG 441–2, 536. Sete Lagoas (includes EMBRAPA e Fazenda Baroneza): M: UFMG 443, 576, 577, 599; F: UFMG 556, 607. Usina Hidroelétrica de Igarapava, Conquista: I: UFMG 23. Val da Lagoa, Serra do Cipó: M: UFMG 646. Vargem do Retiro, Ribeirão Mascates, Parque Nacional da Serra do Cipó: M: MN 31393, 31435. SÃO PAULO: Avanhandava: F: MZUSP 2872. Barreiro Rico, Santa Maria da Serra: F: UFPB 160. Campininha, Mogi-Guaçu, Reserva Biológica de Mogi-Guaçu: M: MZUSP 13591. Cássia dos Coqueiros: I: MZUSP 25587. Dois Córregos: M: MZUSP 7050. Franca: M: MZUSP 820–1. Itapetininga: M: UFMG MAM 182; F: UFMG MAM 179. Ituverava: M: MZUSP 2956; F: MZUSP 2955. Salto de Pirapora: M: MZUSP 24599.