Broad-tailed Beaver 
FIG. 46. BEAVER, CastoT Canadensis frondator 
Skull showing dentition x f 
Castor canadensis frondator (Lat. frondatio, a stripping 
off of leaves) . Broad-tailed Beaver. 
Castor frondator Meams, Proc. U. S. Nat. Mus., xx., p. 5 (1897). 
Type locality. — San Pedro River, Sonora, Mexico. 
Measurements. — Total length, 41.5; tail vert., 14.0; hind foot, 
7.2; scaly portion of tail, 11.3 X 4.8. 
Description. — (From a specimen taken at Manitou Park): Above, 
dark red brown, bright and glossy in certain lights, under fur 
dusky black; sides and head paler; upper surfaces of feet chocolate ; 
underparts similar, but a somewhat hghter shade. 
Distribution. — The Beaver was no doubt at one time found in 
every county in Colorado which contained streams with sufficient 
water for its needs, and to-day, in spite of the persecution to which 
it was at one time subjected from the trappers, .nearly resulting 
in its extinction, it is found over a large area of the State, and 
thanks to the protection accorded it by law, is on the increase. We 
have records of it from Larimer, Weld, Morgan, Grand, Routt, 
