118 SCIURUS. 



red; tail at base all around like back; above black washed with 

 white, beneath mixed yellowish, or reddish brown bordered with 

 black and edged with white; hands and feet white. 



Measurements. Total length, 523; tail vertebrae, 263; hind foot, 

 71. Skull: average of five; basal length, 52.2; palatal length, 27.3; 

 interorbital width, 18.6; zygomatic width, 34.5; length of upper 

 molar series, 10.7. 



a. hernandezi (Sciurus), Nelson, Proc. Wash. Acad. Scien., i, 1899, 

 p. 48. 



albipes quercinus Nels., Proc. Biol. Soc. Wash., xn, 1898, p. 150. 

 (nee Erxl.) 



wagneri quercinus Allen, Bull. Am. Mus. Nat. Hist., 1898, p. 453. 



albipes hernandezi Nels., Science, N. Ser., vin, 1898, p. 783. 

 OAK WOODS SQUIRREL. 



Type locality. Mountains 15 miles west of the city of Oaxaca, 

 State of Oaxaca, Mexico. 



Geogr. Distr. Mountains west of Oaxaca Valley into southern 

 part of State of Puebla and southeastern portion of State of Guer- 

 rero, Mexico. Altitude, 8,000-9,000 feet. 



Genl. Char. Similar to 5. poliopus, but paler. 



Color. Above and outside of arms and legs pale gray and yel- 

 lowish; nose and forehead grizzled gray tinged with black, faint yel- 

 lowish and black patch on nape; ears gray, with white basal patch; 

 orbital ring whitish; chin and throat white; under parts white, some- 

 times tinged with buff; hands and feet white; tail above and below 

 at base like back, remainder of upper part black washed with white, 

 beneath yellowish gray or rusty grizzled, with an indistinct black 

 border and broad white edging. 



Measurements. Total length, 540; tail vertebrae, 273; hind foot, 

 68. Skull: average of five; basal length, 51.5; palatal length, 26.5; 

 interorbital width, 19.5; zygomatic width, 34.6; length of molar 

 series, n. 



b. nemoralis (Sciurus), Nels., Proc. Wash. Acad. Scien., i, 1899, 

 p. 50. 



albipes nemoralis Nels., Proc. Biol. Soc. Wash., xn, 1898, p. 151. 



wagneri nemoralis Allen, Bull. Am. Mus. Nat. Hist., 1898, p. 454. 

 MICHOACAN SQUIRREL. 



Type locality. Patzcuaro, State of Michoacan, Mexico. 



Geogr. Distr. Volcano of Toluca, State of Mexico, to Nahuatzin, 

 State of Michoacan. Altitude, 7,00012,000 feet. 



Genl. Char. Similar to 5. p. hernandezi, but darker above 

 Possessing a melanistic phase in certain localities. 



