MUKID^E. — -SCIURUS. 213 



The Southern Fox Squirrel. Sciurus vulpinus. 

 *a. Skull (from a dark variety). N. America. 



The Red-bellied Squirrel. Sciurus ferrugineiventris. 



*a. Skull. Mexico. From M. Parzudaki's Collection. 

 *b. Skull. Venezuela. From Mr. Cuming's Collection. 



The Honduras Squirrel. Sciurus boothiae. 

 *a, *b. Skulls. Honduras. 



Collie's Squirrel. Sciurus colliaei. 

 *a, *b. Skulls. Mexico. 



Sciurus ? 



*a. Skull. N. America. 



The Grey Squirrel. Sciurus cinereus. 

 Baird, Mamm. N. America, p. 249. pi. 47. fig. 2 (skull), 1859. 

 a, b. ? Skulls. From the Zoological Society's Collection. 



Gapper's Squirrel. Sciurus leucotis. 



Cervical vertebrae 7 



Dorsal 12 



Lumbar 7 



Sacral 3 



Caudal 20 or 21 



a. Skeleton. N. America. Purchased of Mr. Warwick. 



b. Skull. From the Zoological Society's Collection. 



c. Skull. N. America. From Dr. A. Giinther's Collection. 



d. Skull (black variety). 



e. f. Skulls (black variety). From the Zoological Society's Collection. 



The Carolina Squirrel. Sciurus carolinensis. 



Baird, Mamm. N. America, p. 35. pi. 45. fig. 2 (skull), 1859. 



Cervical vertebra} 7 



Dorsal 12 



Lumbar 7 



Sacral 3 



Caudal 25 or 26 



*a. Skull. Wellington, Delaware. N. America. Presented by Henrv 

 Poubleday, Esq. 



