PEAR ENS 
Pumphrey 
Smithsonian Report, 1948. 
so aul 
Ma all 
a. 
. 
Reght ear 
a 
SR 
H 
i 
i 
70 
7 
o: 
/ ih = 
/@ ae 
/ 
/ 
| 
ae Zot al 
{ ? o, 
oo rae o 
/ By 
Lef€ ear ue 
RIGHT AND LEFT ASPECTS OF THE PLUCKED HEAD OF THE LONG-EARED OWL 
ASIO OTUS 
M. é., cavity terminated 
The operculum is turned outward and forward to expose the external meatus. 
by tympanic membrane; d, blind cavity. (From Pycraft, 1898.) 
