57 
back, and the large size of the black and white ringed whiskers, 
giving the whole animal a very striking appearance. 
The tail at this time is not in very good condition, and the end 
appears to have been destroyed. 
2. OBSERVATIONS ON SOME BrazILian Bats, WITH THE DEscRIPTION 
or a New Genus. By J. E. Gray, Esa., F.R.S. Etc. 
Having lately received from Hamburg a collection of Bats from 
Brazil, containing several species which I have not before seen, I 
beg to lay some observations on them before the Society. 
I may premise that they were all named, on what authority I know 
not, and referred to described species, but several of them do not 
agree with the specimens which I have received with the same names 
before, nor with the original descriptions. 
ARCTIBEUS LEUCOMUS, I. SP..- 
Grey brown, paler beneath ; axilla whitish ; tuft of hair on the 
side of the neck, near the shoulders, pure white; hair of back grey 
brown, with darker tips; the arms, and upper and lower surface of 
membranes near the sides, hairy; the interfemoral membrane rather 
wide, hairy above; nose-leaf ovato-lanceolate, longer than broad, 
No. CLXXXIV.—Proceepines or THE ZooLoGtcaL SocieEry. 
