NO. 1116. 



PBOCEEDIXGS OF THE NATIONAL MUSEUM. 



653 



distinct band of this color extending from the lores beneath the eyes 

 and across the ear-coverts to the occiput, the lower edge of this dusky 

 color strongly and quite regularly defined against the white below it. 



From P. auricularis, Townsend/ of Clarion Island (Keville-Gigedo 

 group), the present species differs in being much smaller (/'. auricularis 

 being still larger than P. auduboni), in having the lower portion of the 

 lores (almost the lower half) white, in the presence of a whitish spot 

 above the anterior angle of the eye, dusky feathers on the flanks, and 

 grayish clouding of the under wing-coverts — these characters, except 

 the last, being ijossessed in common with P. auduhoni. 



From what I take to be P. ohscurus., Gmelin, of which there are three 

 exau)ples from the Seychelles now before me, the Galapagos species 

 differs conspicuously in the absence of the extensive ijatch of sooty 

 gray (feathers with white terminal margins) covering the sides of the 

 neck and chest, the region so marked in P. ohscurus{f) being wholly 

 pure white in P. subalaris. The Seychelles bird also has the lores 

 wholly dusky, and lacks the small whitish spot above the anterior 

 angle of the eye. Otherwise the two birds are much alike. 



Measurementtt of Puffinus subalaris. 



Genus OCEANODROM A, Reichenbach. 



Oceanodroma, Reichenbach, Syst. Av., 1852, p. iv. Type, rrocellaria /areata, 

 Gmeliu. 



Range. — Cosmopolitan (pelagic). Galapagos Archipelago (one sj)e- 

 cies, found also in the Hawaiian group). 



^Puffinus auricularis, Townsend, Proc. U. S. Nat. Mus., XIII, 1890, p. 133 

 (Clariou Island, off west coast of Mexico; U. S. Nat. Mus.). 



