28 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Sciurus socialis cocos Nelson. 



1898, Sciurus socialis cocos Nelson, Proc. biol. soc. Wash- 

 ington, XII, \). 155. June 3, 1898. 



Type locality. — Acapulco, State of Guerrero, Mexico. 



* Sciurus griseoflavus (Gray) . 



1867. Macroxus griseoflavus Gra.y, Ann. and mag. nat. hist., 



3d ser., xx, p. 427. December, 1867. 

 1878. Sciurus griseoflavus Alston, Proc. zool. soc. London, 



p. 660. 

 1885. Sciurus griseoflavus True, Proc. U. S. nat. mus., xn 



(1884), p. 595. 1885. 

 Type locality. — Guatemala. 



Sciurus griseoflavus chiapensis Nelson. 



1899. Sciurus griseoflavus chiapensis Nelsox, Proc. Wash- 

 ington acad. sci., i, p. 69. May 9, 1899. 



Type locality. — San Cristobal, State of Chiapas, Mexico. 



* Sciurus yucatanensis (Allen). 



1877. Scii/rus caroli)iensis var. yucatanensis Allen, Monogr. 



N. Amer. rodentia, p. 705. August, 1877. 

 1885. Sciurus carolinensis yucatanensis True, Proc. U. S. 



nat. mus., vii (1884), p. 595. 1885. 

 1897. Sciurus yucata7iensis Allen, Bull. Amer. mus. nat. 



hist., IX, p. 5. February 23, 1897. 

 Type locality. — Merida, Yucatan. 



Sciurus thomasi Nelson. 



1899. Sciurus thomasi Nelson, Proc. Washington acad. sci., 



I, p. 71. May 9, 1899. 

 Type locality. — Talamanca, Costa Rica. 



Sciurus adolphei (Lesson). 



1842. Macroxus adolphei Lesson, Nouv. tabl. r^gne animal, 



mamm., p. 112. 

 1899. Sciurus adolp)hei Nelson, Proc. Washington acad. 



sci., I, p. 73. May 9, 1899. 

 Type locality. — Realejo, Nicaragua. 



Sciurus adolphei dorsalis (Gray) . 



1848. Sciurus dorsalis Gray, Proc. zool. soc. London, p. 138. 



