NINDE VANNUAE REPORT 201 
CROTALUS LUCIFER 
pale borders to be observed in typical specimens. Above, the 
head is curiously and profusely blotched with black, which suf- 
fuses and obliterates traces of the usual parallel lines on the supra- 
orbital plates. 
The general effect of the pale greenish body with jet black 
patches is very striking and handsome. 
Dimensions.—Total length, 34 inches; diameter thickest part 
of body, 11% inches. 
From the character of the rattle, which possesses four segments, 
all of which are of uniform size, the snake appears to be mature. 
Locality—The specimen was taken on a ledge, at an elevation 
of 8,000 feet, in the Beaver Range of Mountains in Utah, by 
George P. Englehardt, while collecting for the Brooklyn Museum 
of Arts and Sciences. Mr. Englehardt explains that at a lower 
altitude he found snakes of the typical form. Upon higher 
ledges, very difficult of access, he observed several specimens 
which resembled the one described, but they escaped among the 
rocks. 
