DR. J. J. KAUP’S MONOGRAPH OF THE STRIGIDA. 2138 
similarly coloured, with three bands on each feather, and the margins white margined 
with black. The smal] feathers of the wings banded with rufous; the outermost having 
the external web white, terminated with black. Arm- and hand-wings dark brown, with 
small rufous cross bands, which are white-spotted on the margin of the hand-wings. 
The inner wings rufous-yellowish, with eight to ten irregular blackish bands. Breast 
rufous and white, with black bands. Belly and sides pure white, with large, round, 
black end-spots. 
Obs. A very handsomely coloured species. 
Dimens.—Wing 143, tail 86 mm. long. 
Hab. 8. Africa. 
Genus IV. Surnia, Dum. 
Diagn.—Nostrils situated on the margin of the rudimentary cera. Lar-orifice small, 
without operculum. Bill curved from the cera, and covered with feathers. Toes 
more or less thickly feathered. Shafts of the wing-feathers strong and stiff. 
2d: 2 e. Surnia. 
a. Microptynz. b. Nyctea. c. 
Subgenus a. Microptynz. 
Glaucidium (pars), Boie. 
Diagn.—First wing-feather shorter than the tenth. First to fourth wing-feathers 
emarginated. ‘Toes very thin, covered with feathers. No bristle-feathers. 
It represents in its genus the genus Glaucidium. 
1. Surnia passerina, Kp. (Pl. LVI. fig. 5a, bill; 6b, wing.) 
Strix passerina, Linn. d 
pusilla, Daud. 
—— pygmea, Bechst. 
acadica, T. Naum. t. 43. 1, 2. 
Glaucidium passerinum, Boie. 
Athene passerina et africana, G. R. Gray ; Lev. Afr. t.46; Nils. Scand. Faun. t.3. 
Diagn.—Tail 56-62 mm. long, with five arrow-like cross bands reaching to the 
shafts. 
Descr.—Head ash-grey, with white dark-margined spots. Back and tail-coverts 
with concealed white spots, the feathers on these parts having a white band near the 
base, and a spot at the end. Shoulder-coverts with three to four whitish shaft-spots or 
bands on each feather. The small feathers on the wing with white spots. Arm- and 
hand-wings blackish, with rufous and small rufous-brownish bands, which on the 
external and internal margins are spotted with white. The wings are crossed by six to 
eight lighter-coloured bands, which are white over the emarginations. Sides of breast 
