MOKPHOLOGT OF THE OWLS. 275 



Fig. 2. Right side view of the same head. Letters as before. 



Fig. 3. Left side view of the head of an adult Scops lencotis, to show the form of the external aperture 

 of the ear. — Note the anterior and posterior divisions of the cavernum, described on p. 259. 

 Letters as before. 



Fig. 4. Left side ^-iew of the head of an adult Strix fiammea , to show the form of the external aperture 

 of the ear (see p. 263). Letters as before. 



Fig, 5. Right side view of the head of an adult Speotyto cunicularia, to show the form of the external 

 aperture of the ear. — Note the small size of the aperture, and the spiral arrangement of the 

 feathers seated in the pre- and postaural folds. Letters as before. 



Fig, 6. Left side view of tlie head of an adult Niiiox novce-zealandice, to show the form of the external 

 aperture of the ear. Letters as before. 



Plate 29. 



Fig. 1. Dorsal aspect of an adult .S7rM\//f/»?wiec, showing the arrangement of the pterylse. The dotted 

 parts as before. Letters as before. 



Fig. 2. Left side view of the same. — Note the absence of lateral neck-folds and the outward turning of 

 the inner branch of the pt. ventralis. Letters as before. 



Fig. 3. Ventral view of the same. In this figure the characteristic outward direction of the caudal end 

 of the inner branch of the pt. ventralis is well seen. Letters as before. 



SECOND SERIES. — ZOOLOGY, VOL. VII. 38 



