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MONOGRAPH OF THE OWLS -STRIGtlDJE 
of Bubo ketupa ; upper parts dark brown, with rusty yellow or 
rufous margins. 
IV. Genus ST It IX, Linn. 
The claws of the middle toe on the interior margin distinctly pec- 
tinated. The ear orifice quadrangular, placed in the middle between 
two skin flaps, and bounded on the upper and lower margin by a 
membrane; the hind ear flap is small and equal in breadth, the 
anterior or operculum broadest in the middle ; the ear slit begins 
over the eye and reaches nearly to the gape like Otus ; symmetric. 
They are spread over all parts of the world. 
a. Subgenus Phodilus, Is. Geoffr.— Wing short; first quill 
as long as the tenth ; toes naked, scaled, without bristle-feathers. 
1. Str. badia , Horsf. ; PL col. 318; Ph . badius , Is. Geoff. — 
Smaller than Str. flammea , but very near to it in colour. Java. 
Rare in collections. 
b. Subgenus Strix. — Middle size and very light; the first quill 
nearly as long as the second, the third a little shorter ; first quill 
only, indistinctly emarginated on the end of the inner web ; toes 
finely scaled, with bristle-feathers ; the long wing overreaching the 
short tail. 
2. Str. punctatissima, G. Gray, Voyage of Beagle B. p. 34, pi. 4. 
The smallest; the wing only 235 mm. long; the first quill shorter 
than the fourth. Galapagos Islands ; British Museum. 
3. Str. glaucops, Kp. — With silver grey face; the first quill as 
long as the fourth. Jamaica ; British Museum. 
4. Str. st. thomae , Hartl. — The upper parts nearly black grey 
with white black-bounded spots ; margins of the feathers of the 
hind eai rusty yellow, with black shafts, or black shaft stripes next 
the gape and chin. Western Africa. I have not compared this 
species with Fraser’s Strix poensis, from the Island of Fernando Po. 
5. Str. flammea, Linn.; PI. Enl. 440; Gould, t. 36.— The outer- 
most series of feathers on the hind ear-margin pure white, or along 
the shaft with an indistinct line pointed at the end with dark 
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