NORTH AMERICAN RECENT MAMMALS. 219 



♦Scitinis colliaei colliaei — Continued. 



1899. Sciurus collixi Nelson, Proc. Washington Acad. Sci., 



vol. 1. p. 58. May 9, 1899. 

 Type Locality. — -San Bias, Nayarit, Mexico, 

 Range. — x\rid tropical lowlands and lower slopes of adjacent 



mountains from northern border of Tepic south to Bay of 



Banderas, below 2,500 feet. 



t* Sciurus colliaei nuchalis Nelson, 



1899. Sciurus collixi nuchalis Nelson, Proc. Washington Acad. 

 Sci., vol. 1, p. 59. May 9, 1899. 



Type Locality. — Manzanillo, Colima, Mexico. 



Range.— Arid tropical lowlands from the border of Michoacan 

 north along the coast to the Bay of Banderas, Jalisco, and 

 inland to the more heavily wooded mountains near San Sebas- 

 tian, Jalisco, below 3,000 feet. 



*Sciurus sinaloensis Nelson. 



1899. Sciurus sinaloensis Nelson, Proc. Washington Acad. Sci., 



vol. 1, p. 60. May 9, 1899. 

 Type Locality, — Mazatlan, vSinaloa, Mexico, 

 Range. — Arid tropical parts of southern and central Sinaloa, 

 below 2,500 feet. 



t*Sciurus truei Nelson. 



1899. Sciurus truei Nelson, Proc. Washington Acad. Sci., vol. 1, 

 p. 61. May 9, 1899. 



Type Locality. — Camoa, Rio Mayo, Sonora, Mexico. 



Range. — Scrubby forests of arid lower Sonoran zone in south- 

 western Sonora and northern Sinaloa, Mexico. 



*Sciurus socialis socialis Wagner. 



1837. Sciurus socialis Wagner, Abhandl. math.-phys. CI. k. 

 bayerisch. Akad. Wiss. Miinchen, vol. 2, p. 504. 



1899. Sciurus socialis Nelson, Proc. Washington Acad, Sci., 

 vol. 1, p. 62. May 9, 1899. 



Type Locality. — Vicinity of Tehuantepec City, Oaxaca, Mexico. 



Range. — Arid tropical lowland forests along the Pacific coast 

 from Puerto Angel, Oaxaca, south to Tonala and Tuxtla, 

 Chiapas, Mexico, and up the river valley to Nenton, Guate- 

 mala, below 3,000 feet. 



t*Sciunis socialis cocos Nelson. 



1898. Sciurus socialis cocos Nelson, Proc. Biol. Soc. Washing- 

 ton, vol. 12, p. 155. June 3, 1898, 

 Type Locality. — Acapulco, Guerrero, Mexico. 

 Range. — Arid tropical lowlands of the Pacific coast from Aca- 

 pulco, Guerrero, south to Jarailtepec, Oaxaca, below 1,500 feet. 



