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



Subgenus b. Strix. 



Diagn. — Of middling size and very lightly built. The first wing-feather nearly as 

 long as the second, the third a little shorter. Only the first wing-feather on the end 

 of the inner web feebly emarginated. Toes finely scaled, and provided with bristle- 

 feathers. The long wings reach beyond the short tail. 



The members of this subgenus all bear very near relation to each other, and we have 

 for a long time considered them as climatic varieties of the common Strix flammea. 

 They are spread over the whole world. 



2. Strix ponctatissima, G. R. Gray. 



Voy. of Beagle, B. p. S-l. pi. 4. 



Diagn. — The wings are only 235 mm. long. The first wing-feather shorter than the 

 fourth. 



Descr. — The smallest of all the group, with the darkest plumage. Upper parts with 

 fine rufous and white drawing. All the feathers with white end-spots. The inferior 

 parts, like the interior shoulder-coverts, rusty- yellow, with two to three blackish arrow- 

 like spots on each feather. Tail with four black bands and white spots on the end- 

 margins. The veil rufous, dark-coloured on the point, with fine black drawing. 



Dimens. — Head 71, bill from the gape 39, tarsus 58, middle toes 58, tail 108 mm. 

 long. 



Hab. Galapagos Islands. 



06s. — A very distinct species, only in the Collection of the British Museum. 



3. Strix glaucops, sp. nov. 



Diagn. — With silver-grey face. The first wing-feather as long as the fourth. 



Descr. — Face silver-grey ; feathers of the hind ear-margin rusty-red, some with darker 

 shaft-spots and points on the top ; under the chin, the ends of the wreath-feathers 

 nearly black. Back blackish, with a great number of zigzag spots and lines. Tail 

 rusty-red, black-pointed, with seven black cross-bands. The wings are similarly 

 coloured. The lower parts rusty-red ; on each feather are black spots and zigzag bands. 



Dimens. — Head 80, bill from the gape 44, wing 245, tail 125, tarsus 64 mm. long. 



Hab. Jamaica. British Museum. 



4. Strix flammea, Linn. 



Naum. t. 31 ; Gould, Birds of Eur. t. 36 ; Enl. 440. 



Diagn^ — The outermost series of feathers on the hinder ear-margin pure white, or 

 along the shafts with an indistinct drawing, which ends in dark-brown points. 



Descr. — The arn^- and hand-wings are never white, but rufous, with black and 

 white bands on the inner side. 



