PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 371 



3. ASIO GALAPAGOENSIS (Gould) StricM. 



{Galapagoan Short-eared Owl.) 



Otus (Brachyotus) galapagoensis Gould PZS. 1837, 10 (Galapagos). 



Brachyotus galapagoensis Bonap. Cousp. i, 1850, 51. — Cass. Illustr. B. Cal. Tex. etc. 



1854, 183. 

 Otus galapagoensis Darwin Voy. Beag. Birds, iii, 1844, 32, pi. 3. — Gray Genera B. i, 



1844, 40; List. B. Brit. Mus. , 108; Hand-1. i, 1869, 51. 



Asio galapagoensis Strickl. Orn. Syn. i, 1855, 211. 

 Brachyotus paltistris, c. galapagoensis Coues Birds N. W, 1874, 307. 

 "Asio accipitrinus" Sharpe Cat. Strig. Brit. Mire. 1875, 234 (part). 



Asio accipitrinus, y. Asio galapagoensis Sharpe t. c. 238 (Galapagos). 



Smithsonian Institution, January 13, 1881. 



DESCRIPTION OF TWO KKW RACES OF lUVAOESTES OBSCVRIJS 



L.AFR. 



By I^EONHARD STEJNEOER. 



During a recent examination of the species of the genus Myadestes, 

 I have found that M. ohscurus ought to be divided into three distinct 

 races. I am indebted to the kindness of the authorities of the National 

 Museum for the opportunity of describing them. 



Prof. S. F. Baird in his "Eeview" of American Birds, I, p. 431, has 

 already remarked, that "in specimens from Western Mexico, Tonila, 

 and Tres Marias, the ash of head invades the back," and that "the 

 rufous of the back is paler." But I find, also, that the specimens from 

 the continent and those from the islands mentioned difler from each 

 other so essentially in other particulars, that I have thought it convenient 

 to separate them as follows : 



a' Head and neck slate-colored, rest of upper parts brownish olive. 



1. M. ohscurus Lafr. 

 a^ Head, neck, and fore part of tlie back lighter ash-colored, changing gradually into 

 the paler olivaceous of the remaining upper parts. 

 6' First primary not longer than the longest of the primary coverts ; the second 

 shorter than the seventh. Only the three outer tail-feathers tipped with 

 white. Innermost secondaries without light edges on the tip. 



2. M. ohscurus var. occidentalis Stejneger. 

 h^ First primary much longer than the longest of the primary coverts, the sec- 

 ond equal to the seventh. All the tail-feathers distinctly tipped with 

 white. Innermost secondaries with the tips light-edged. 



3. M. ohscurus var. insularis Stejneger. 



Myadestes obscurus Lafr. 



Myadestes obscurus Lafr. Rev. Zool. 1839, p. 98. — Baird, Rev. Amer. Birds, I, p. 430. — 

 SCLAT. and Salv. Exot. Ornith. pt. iv, p. 49, pi. xxv. 



Descr.— ( U. S. Nat. Mus. No. 30722. Volcan de Fuego, Guatemala, 

 Nov., 1861. O. Salvin.) — Slate-gray, the back brownish olive, more 



