28 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Sciurus socialis cocos Nelson. 



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

 ington, xn, p. 155. June 3, 1898. 



TYPE LOCALITY. Acapulco, State of Guerrero, Mexico. 



* Sciurus griseoflavus (Gray) . 



1867. Macroxus griseoflavus GRAY, 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., vii 



(1884), p. 595. 1885. 

 TYPE LOCALITY. Guatemala. 



Sciurus griseoflavus chiapensis Nelson. 



1899. Sciurus griseoflavus chiapensis NELSON, Proc. Wash- 

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



TYPE LOCALITY. San Cristobal, State of Chiapas, Mexico. 



* Sciurus yucatanensis (Allen). 



1877. Sciurus carolinensis var. yucatanensis ALLEN, Monogr. 



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

 1885. /Sciurus carolinensis yucatanensis TKUE, Proc. U. S. 



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

 1897. Sciurus yucatanensis ALLEN, Bull. Amer. mus. nat. 



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

 TYPE LOCALITY. Merida, Yucatan. 



Sciurus thorn asi 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. regne animal, 



mamm., p. 112. 

 1899. Sciurus adolphei 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. 



