36 NELSON 



Size small, total length under 450 mm. ; premolars y or f 

 Premolars i; ears medium long, thinly haired (Subgenus Guer- 

 linguetus) 



Tail washed with bright ferruginous hoffmanni p. 98. 



Tail washed with yellowish rickmondi -p. 100. 



Premolars f 



Ears large, tufted (Subgenus 7 amiasciurus) 



Back gray, belly white, lateral line hXdiQ^^.mearnsi p. 87. 

 Ears small or medium, not tufted 



Ears short, rounded, thickly haired ; total length under 

 300 mm. (Subgenus Microsciurus') 



Tail washed with reddish alfari p. 105. 



Ears medium long, pointed, thinly haired; tail washed 

 with white ; total length over 300 mm. (Subgenus 

 Saiosciurtis) 



Back grayish brown negligens p. 1 04. 



Back reddish or yellowish brown deppei ^. loi. 



LIST OF SPECIES, TYPE LOCALITIES, AND SPECIMENS 

 EXAMINED. 



Name. 



Sciurus aureogastet F. Cuv. 



hypopyrrhiis 



(Wagl.) 

 frumentor Nelson 

 foliofus (Fitzinger) 



hernandezi Nelson 



nemoralis Nelson 

 cervicalis (Allen) 

 colimensis Nelson 

 effugius Nelson 



nelso7ii Merriam 



hirtus Nelson 

 collicei Richardson 



nuchalis sub sp. nov 

 sinaloensis sp. nov. 

 iriiei sp. nov. 

 socialis Wagner 



cocos Nelson 

 griseoflavus (Gray) 



chiapensis subsp. n 



Type Locality. 



Eastern Mexico [Typical at AltaMira, 



Tamaulipas] 

 ' Mexico' [Typical at Minatitlan, 



Vera Cruz] 

 Las Vigas, Vera Cruz, Mexico 

 ' Cordillera of Oaxaca' [Typical on 



Cerro San Felipe] Oaxaca 

 Mts. w. of Oaxaca City, Oaxaca, 



Mexico 



Patzcuaro, Michoacan, Mexico 

 Sierra Nevada de Colima, Jalisco, Mex. 

 Hacienda Magdalena, Colima, Mexico 

 Mts. w. of Chilpancingo, Guerrero, 



Mex. 

 Huitzilac, Morelos, Mexico 

 Tochimilco, Puebla, Mexico 

 San Bias, Tepic, Mexico 

 Manzanillo, Colima, Mexico 

 Mazatlan, Slnaloa, Mexico 

 Camoa, Rio Mayo, Sonera, Mexico 

 Near Tehuantepec City, Oaxaca, Mex 

 Acapulco, Guerrero, Mexico 

 ' Guatemala ' [Typical near Duenas] 

 San Cristobal, Chiapas, Mexico 



No. of 

 specimens 

 examined. 



16 



17 



32 

 24 

 10 



18 



7 

 24 

 17 



4 



4 



54 



33 



22 

 12 



