60 



MAMMALOGY. 



inches ; to the eye, seven inches ; lachrymal sinus in length, one inch ; 

 in depth, seven-eighths of an inch. 



" This specimen was of full size, but had small horns and one basal 

 antler on the right side, which was about three inches long, situated 

 inside and directed upwards and backwards. The skin was lost in 

 descending the Sacramento River. 



" Specimen killed at the Bay of San Francisco : horns two-pronged, 

 separated at the base, two inches ; at the points, eight and one-quarter 

 inches; length by the curve, fifteen and a half inches; first antler, 

 nine inches ; second, two and a quarter inches ; fore hoof, in length, 

 two and a half inches ; width, one and four-fifths of an inch ; hind 

 hoof, in length, two and a half inches; width, one and four-fifths of 

 an inch ; spurious hoofs, fore feet, one inch ; in width, three-quarters 

 of an inch ; spurious hoofs, hind feet, seven-eighths of an inch ; in 

 width, three-quarters of an inch. 



" This species has a glandular sac, about an inch and a quarter long,' 

 opening on the outside of the hind legs, half way between the os calcis 

 and the spurious hoof, similar to that in Cervus virginianus. 



" This deer was first seen and described by our adventurous country- 

 men. Captains Lewis and Clarke, whose description, published in their 

 journal, in the year 1807, is so accurate, that we subjoin it entire, 

 adding only the scientific names of the other species with which they 

 compared it : 



"'The black-tailed fallow deer are peculiar to this coast, and are 

 a distinct species; partaking equally of the qualities of the mule deer 

 [Cervus macrotls), and the common deer (C. virginianus) . Their ears 

 are longer than those of the common deer. The receptacle of the 

 eye is more conspicuous, their legs shorter, and their bodies thicker 

 and larger. The tail is of the same length with that of the common 

 deer ; the hair on the under side is white, and on its sides and top of 

 a deep jetty black ; the hams resemble in form and color those of the 

 mule deer, which they likewise resemble in gait. 



" ' The black-tailed deer never runs at full speed, but bounds with 

 every foot from the ground at the same time, like the mule deer. He 

 sometimes inhabits the woodlands, but more often the prairies and 

 open grounds. It may generally be said that he is a size larger than 

 the common deer and less than the mule deer. The flesh is seldom 

 flit, and in flavor is far inferior to any other species.' 



" We propose the name Lewisii, from the conviction that the above 



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