116 SCIURUS. 



States of Vera Cruz, eastern San Luis Potosi, Queretaro, Puebla, and 

 northeastern Hidalgo and northern Oaxaca, up to 4,000 and 8,000 

 feet. 



Genl. Char. Size large; coloring varied, under parts ferrugineous 

 to dark rufous; tail long. 



Color. Above varying from iron gray to whitish gray; nape 

 yellowish brown or rusty rufous; orbital ring deep buff; between eye 

 and ear yellowish brown; chin and cheeks grizzled gray; arms and 

 hands iron gray ; feet varying from blackish to iron gray ; under parts 

 and sometimes a band over shoulders and outer side of arms, bright 

 ferrugineous; ears gray to rusty red; tail at base like back, remainder 

 above black, washed with white, beneath ferrugineous, with a black 

 border edged with white. 



Measurements. Total length, 539; tail vertebrae, 265; hind foot, 

 67. Skull: average of five; basal length, 49.8; palatal length, 26.5; 

 interorbital width, 19.1; zygomatic width, 34.5; length of uppei 

 molar series, 11.3. 



a. hypopyrrhus (Sciurus), Wagler, Isis, 1831, p. 510. 



morio Gray, Ann. Mag. Nat. Hist., 3d Ser., xx, 1867, p. 424. 



maurus Gray, Ann. Mag. Nat. Hist., 3d Ser., xx, 1867, p. 425. 



variegatus Sumichrast, La Naturaleza, vn, 1887, p. 360. 



aureogaster ! Allen, Bull. Am. Mus. Nat. Hist., in, 1890, p. 181. 



(nee Cuv.) 

 FIRE-BELLIED SQUIRREL. 



Type locality. Mexico. State of Vera Cruz ? 



Geogr. Distr. Southern part State of Vera Cruz, and States of 

 Tabasco, Oaxaca, and Chiapas, Mexico. 



Genl. Char. Darker than 5. aureigaster. 



Color. Above grizzled with black, rusty or grayish white; fore 

 part of crown and nose iron gray; nape grizzled rufous or brownish; 

 orbital ring brownish buff; chin and cheeks grayish; under parts 

 deep ferrugineous, this color covering arms and forming a band on 

 shoulder; outside of thighs grizzled like back; hands and feet black 

 or grizzled with gray; tail at base like back, rest black washed with 

 white, beneath ferrugineous with a black border and white edge; 

 sometimes for ferrugineous black is substituted; ears gray or red- 

 dish brown, sometimes with black border, and a basal patch in 

 winter, grayish white. 



Measurements. Total length, about 522; tail vertebras, 266; hind 

 foot, 67. Skull: average of five; basal length, 52.6; palatal length, 

 27.1; interorbital breadth, 18.4; zygomatic breadth, 34.8; length of 

 upper molar series, 11.4. 



