DR. J. J. KAUP'S MONOGRAPH OF THE STRIGID^. 239 



2. Bubo bengalensis, G. R. Gray. 



Otus , Frankl. 



Bubo {Urrua) cavearius, Hodgs. 

 Gould, Cent. Hira. B. t. 3. 



Diagn. — The black vertical margin-feathers of the ear bound the veil. The feather- 

 horns 62-67 mm. long, black at the roots, and on the interior webs rufous-margined. 



Descr. — Smaller than the common Bubo maximus. Sides and belly rufous, with line 

 black shaft-stripes, and finer pointed arrow-like drawing. Tarsi uniform fawn-coloured. 



Dimens. — Head 95-98, bill from the gape 49-51, tarsus 74-78, middle toe 44-50 

 ram. long. 



3. Bubo ascalaphus, -Say. 



Exped. Egypt. Ois. 3. 3; Gould, Eur. t. 38; PI. Col. 57; Brit. Zool. pi. B. f. 3. 

 Otus ascalaphus, Cuv. 

 Ascalaphia savignyi, I. Geoff. 



Diagn. — A black vertical stripe bounds the veil of the ear. The ear-feathers short, 

 44 mm. in length, rusty-yellow, with black points. Sides and belly rusty-yellow, with 

 round white, black-margined spots. 



Descr. — The most slender species of all, having some analogies with Otus. The 

 whole plumage rufous, with irregular dark-brown drawing on the superior parts, except 

 the tail-coverts, which are nearly uniform rufous with some bands at the end. Along 

 the shoulder-coverts and the superior parts of the wing a series of white spots. Sides 

 and inferior tail-coverts elegantly pointed and banded. Near the furcula are large 

 spots. The slender thighs and toes pale rusty-yellow. Under side of the tail nearly 

 white, with six narrow black bands ; the upper side with irregular drawing on the 

 middle feathers. 



Hab. Egypt and Nubia. Strays sometimes into Sardinia, Sicily, and even England. 



Dimens. — Head 91, bill from the gape 49, wing — ?, tarsus 79, middle toe 43 mm. 

 long. 



4. Bubo maximus, Sibb. 



Strix bubo, Linn. ; Gould, Birds of Eur. t. 37 ; Naum. t. 41. 

 atheniensis et alba, Daud. 



Diagn. — The veil of the ear not bounded by a black stripe. Ear-horns nearly 

 80 mm. long, black, on the margins of the inner webs rufous-spotted. The wings 

 460 mm. in length. 



Descr. — The largest bird in this subgenus. The face rufous-grey, with fine cross- 

 bands. The upper parts rufous, with black shaft-spots and lighter cross-lines. The 

 under parts of the back and tail-coverts rusty-yellow, with irregular brownish cross- 

 bands, and darker rusty-yellow-pointed margins on each feather. The shoulder-coverts 

 dark brown, at the base rufous, blackish-banded, on the margins white-spotted and 



VOL. IV. PART VI. 2 M 



