. Catalogue of the Birds in the British Museum. 15. Asio. 225 A male from Socorro Island (Colonel A. J. Graj'son) is less adult than the preceding. The upper plumage is more brownish and more mottled; the rufous spots, though deeper and larger, are less sharply defined; the spots on the primaries arc all ochraceous ; the bands on the tail are broader though of the same number. Beneath the longitudinal blotches do not appear ; but the rusty rufous covers nearly the whole surface, leaving the median portion only white, and this not well defined ; the rust)" shows ragged minute transverse ba
. Catalogue of the Birds in the British Museum. 15. Asio. 225 A male from Socorro Island (Colonel A. J. Graj'son) is less adult than the preceding. The upper plumage is more brownish and more mottled; the rufous spots, though deeper and larger, are less sharply defined; the spots on the primaries arc all ochraceous ; the bands on the tail are broader though of the same number. Beneath the longitudinal blotches do not appear ; but the rusty rufous covers nearly the whole surface, leaving the median portion only white, and this not well defined ; the rust)" shows ragged minute transverse bars of blackish. The whitish collar round the nape is also better defined than in the type. Total length 5-20 inches, wing 4-20, tail 2-10. Another specimen, from the same locality, also apparently imma- ture, is just like the preceding in plumage. It measures—wing 4 inches, tail 1-90. (Id. I. c.) Hah. The same as that of the genus. Subfam. II. SYRNIINiE. Key to the Genera. a. Feathered tufts on head very distinct; cere mucli longer than culmen 15. Asio, p. 225. h. No tufts of feathers on head ; cere not so long as culmen. a'. Bouy shell of ear-conch the same on both sides of the skull; toes sometimes thickly feathered or at least with hair-like bristles, sometimes entirely bare 16. Stjrnium, p. 244. v. Bony shell of ear-conch entirely asymmetrical; toes thickly feathered ....'...' 17. Nyctala, p. 284. 15. ASIO. Type. Asio, Briss. Orn. i. p. 28 (1766) A. otus. Otus, Cuvier, Lemons Anat. Cump. tabl. ii. (1799) A. otus. Bubo, Dumeril, Zool. Anal. p. 34 (1806) A. otus. Nyctalops, Waglei; Ms, 1832, p. 1221 A. stygius. Brachyotus, Gmdd, P. Z. S. 1837, p. 10 A. galapa^ensis. Pseudoscops, Kaiip, Isis, 1848, p. 769 A. grammicus. Phasmoptynx, Kaup, Isis, 1848, p. 769 A. capensis. Rhinoptynx, Kemp, Contr. Orn. 1852, p. 114. A. mexicanus. Nisuella, Bp. Rev. et Mag. de Zool. 1854, p. 542 A. madagascariensis. Cf Sharpe, Ibis, 1875. p. \J^ loot of-4.«o Please note that these i
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