71 Two Sfi /' J us. 



not - ly contrasted as in the preceding species. The ears 



are also fringed with fur in the same manner. Beneath, the 



far is of a reddish cinereous or ochreous hue, lighter towards 



tail, but not in the least whitish. The nose is similar, but 



jhy crests between the eyes and nostrils appear to be 



still larger, and in the preserved specimens are much more 



con- The ears are similar, though every way more 



ample in the present, and presenting a different outline imme- 



dial r rising from the forehead; the auricle broader and 



r. The wing and tail membranes are entirely naked, 



dusky, of a thicker texture, and much more strongly reticulated 



than in the first species. 



Incisors -j- canines -^j- molars -^-=00. 



Total length - - 3.8 inches. 



1 ----- 1.1 '■ 



Tail 1.7 " 



Fore arm ----- 1.8 ' 



Tibia - 0.8 " 



Bpread - - - - 11.0 " 



Three specimens of this very distinct new species were 

 brought from the Columbia river by Mr. John rLTownsend, 

 where he procured them on his late journey in company with 



Mr. Nuttall. Jt is very like the /'. /.< <■<</////, but they may 



lv readily known by the color of the under part of the body, 



- which they differ in almost all their details of color 



and proportions, the present being a larger and more robust 



animal. Together they seem to form a small group in the 



is, characterized by the double fleshy crest of the n 

 whieli i^ not, mentioned :is occurring in any other speeds. 

 I: bliged to describe th< I 1 Bats from dried 



. in which stale the most characteristic mail.-, espe- 

 ■ ■ head, are often difficult to detect, whatever 



pail taken. J | );r . . in describing the head of the 



