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



Hab. The island of St. Thomas, on the western coast of Africa. I think that this 

 bird is spread over a great part of Western Africa. 



This species ought to be compared with Strix poensis, Fraser, Proc. Zool. Soc. 184'2, 

 p. 187, from the island of Fernando Po. 



Subgenus c. Scelostrix. 



8. Strix Candida, Tick. 



Journ. A. S. B. ii. p. 572 (1833). 



Strix longimembris, Jerd. Madr. J. Lit. & Sc. 1839, p. 86. 



capensis, A. Smith, 111. S. Afr. Zool. pi. 45. 



Diagn. — ^Tarsus 80 mm. long ; upper parts more or less uniform brown or blackish. 



Descr. — In size near to Strix personata, but the bill and toes thinner. The upper parts 

 with little end-spots on each feather. Here and there more or less rufous. The inferior 

 parts more or less rusty-yellow, with reddish-brown spots on the points of the greater 

 part of the feathers. The young bird has these parts, as well as the tail, pure white, 

 and the spots are smaller. The tail shows four bands. 



Dimeres.— Head 82, bill from the gape 44-46, wing 340-349, tail 123, tarsus 80, 

 middle toe 35-40 mm. long. 



Hab. Cape of Good Hope and Madras. 



Subgenus d. D actylo strix . 



Diagn. — With shorter wings and shorter wing-ends, which do not reach beyond the 

 end of the tail. Second wing-feather the longest, third as long as the second. 



Descr. — Without the light aerial body of the second subgenus, Strix, and with stronger 

 bill, more powerful toes, and stronger shafts to the wings. The toes yellow, with fine 

 scales and bristle-feathers. Large-sized Owls, preying upon larger animals than mice. 



9. Strix castanops, Gould. 



Birds of Austr. torn. i. pi. 28. 



Diagn. — Middle toe 57-58 mm. long. 



Descr. — Differs greatly from the preceding species in its large size, strong tarsi, and 

 long toes. The upper parts black and rufous-yellow, with irregular white zigzag spots. 

 The lower parts with large irregular black spots, with white bands on the top of each 

 feather. Tail with six irregular cross-bands. The margin of the veil usually dark 

 brown. Some with brown, others with a white face : it varies very much in this respect. 



Dimens. — Head 89, bill from the gape 50, wing 359, tail 162, hind toe 26 mm. long. 



Hab. Van Diemen's Land. 



