344 STRIGIN^. 



Genus IV. ULULA. TUFTED-OWL. 



Conch of the ear extending from the base of the lower 

 mandible to over the middle of the eye, subelliptical, 

 curved, depressed, having anteriorly an operculum in its 

 whole length, and behind a broad membranous mai-gin, 

 both beset with recurved feathers. Aperture of the 

 meatus elliptical, in the lower part of a cavity occupying 

 nearly half the height of the conch. The bottom of the 

 conch is formed anteriorly by the outer edge of the eye- 

 ball and the orbit, posteriorly by a thin edge of the oc- 

 cipital bone, above by the bones of the skull, all covered 

 with skin, which is puckered up into folds. Facial disks 



EAR OF ULULA OTUS. 



very large and complete. Ruff conspicuous and com- 

 plete. Bill short, of moderate strength, its upper out- 

 line slightly curved from the base ; nostrils oblong. 

 Wings rounded, the second quill longest, the first about 

 the length of the fourth. P. 399- 



1. U. Otus. Mottled Tufted-Owl, or Long-eared Owl.-^ 



