MILLER AND REHN: NORTH AMERICAN MAMMALS. 27 



Sciurus poliopus effugius (Nelson). 



1.S98. Sciurus alhipes effugius Nelsox, Proc. biol. soc. Wash- 

 ington, XII, p. 152. June 3, 1898. 



1899. Sciurus poliopus effugius Nelsox, Proc. AVashington 

 acad. sci., i, p. 54. May 9, 1899. 



Type locality. — High mountains west of Chilpancingo, 

 State of Guerrero, Mexico. 



Sciurus nelsoni Merriam. 



189o. Sciurus tielsoni Merriam, Proc. biol. soc. Washington^ 



VIII, p. 144. December '29, 1893. 

 Type locality. — Huitzilac, State of Morelos, Mexico. 



Sciurus nelsoni hirtus Nelson. 



1898. Sciurus nelsoni hirtus Nelson-, Proc. biol. soc. Wash- 

 ington, XII, p. 153. June 3, 1898. 



Type locality. — Tochimilco, State of Puebla, Mexico. 



Sciurus coUiaei Richardson. 



1839. Sciurus colliaei Richardsox, Voy. H. M. S. Blossom, 



zool., p. 8. 

 Type locality. — San Bias, State of Tepic, Mexico. 



Sciurus colliaei nuchalis Nelson. 



1899. Sciurus colliaei nuchalis Nelsox, Proc. Washingtoa 

 acad. sci., i, p. 59. May 9, 1899. 



Type locality. — Manzanillo, State of Colima, Mexico. 



Sciurus sinaloensis Nelson. 



1899. Sciurus sinaloensis Nelsox, Proc. Washington acad. 



sci., I, p. 60. May 9, 1899. 

 Type locality. — Mazatlan, State of Sinaloa, Mexico. 



Sciurus truei Nelson. 



1899. Sciurus truei Nelsox, Proc. Washington acad. sci., 



I, p. 61. May 9, 1899. 

 Type locality. — Camoa, Rio Mayo, State of Sonora, Mexico. 



Sciurus socialis Wagner. 



1837. Sciurus socialis Wagxer, Abhandl. math.-phys. CI. 



k. bayerisch. Akad. Wiss. Mtinchen, ii, p. 504. 

 Type locality. — Vicinity of Tehuautepec City, State of 



Oaxaca, Mexico. 



