PUFFINUS SUBALARIS. 



The other specimens in the British Museum from Tagus Cove, Albemarle Island, 

 and from Jervis Island, have the following measurements : — 



<?. Wing, 7.3-7.6 inches; tarsus, 1.35-1.45; middle toe and claw, 1.65-1.7; 



culmen, 1.1—1.2. 

 ? . Wing, 7.6 inches ; tarsus, 1.45 ; middle toe and claw, 1.7 ; culmen, 1.1. 



Three males in the Rothschild Collection from Bindloe Island, Tower Island, and 

 Seymour Island, measure as follows : Wing, 7.25-7.6 inches ; tarsus, 1.4-1.5 ; middle 

 toe and claw, 1.6-1.65 ; culmen, 1.0-1.1. 



No notes have been published on the habits of this species, but the Hon. Walter 

 Rothschild and Dr. Hartert, in the memoir previously quoted, state that a great many 

 eggs were collected on Culpepper Island during the last days of July. They were 

 found singly in little holes under rocks, among seaweed. The birds were very tame, 

 allowing themselves to be taken from the nest without resistance (Nov. Zool., VI., 

 p. 195). The eggs are without gloss, but smooth : if held up to the light they appear 

 almost pure white, or light green. They measure 54 mm. by 35 mm. (=2.2 inches by 1.4) ; 

 53.5 by 35 (=2.15 inches by 1.4) ; 47 by 34.5 (= 1.9 inch by 1.35), etc. Specimens 

 in the British Museum measure : Axis, 1.95-2.55 inches ; diam., 1.35-1.4. 



Adult female. General colour above sooty-black, the head being uniform with 

 the back ; wing-coverts like the back ; quills and tail-feathers rather deeper black ; 

 the primary-coverts and quills with faintly indicated fringes of lighter brown at their 

 ends ; lores, sides of face and ear-coverts sooty-black like the crown ; cheeks white, 

 with a few dusky spots below the ear-coverts ; under the eye a white spot ; the line 

 between the white cheeks and the black of the sides of the face fairly well defined, 

 but slightly broken with blackish mottlings on the sides of the fore-neck and chest, 

 the latter having a patch of sooty-black ; entire under-surface of body pure white, 

 excepting the flanks, thighs, and under tail-coverts, which are sooty-brown ; axillaries 

 also sooty-brown, with white fringes at the tips, and a little white at the extreme base ; 

 under wing-coverts entirely sooty-brown, the feathers slightly darker subterminally ; 

 quills dusky-black below, with a slight ashy shade along the inner webs ; " bill black 

 above, bluish slate-colour below ; feet bluish-white, the outer toe black ; tarsi bluish- 

 white, blackish along the back, and on the lower portion of the outsides ; iris light 

 blue" (C. M. Harris). Total length about 12 inches ; culmen, 1.1 ; wing, 7.6 ; tail, 

 2.6 ; tarsus, 1.45 ; middle toe and claw, 1.7. 



The sexes are alike in colour, and the measurements of both males and females are 

 given above. 



The description has been taken from a specimen in the British Museum. It was 

 obtained by Mr. Beck at Tagus Cove, Albemarle Island, on the 29th of November, 

 1897, during the Webster-Harris expedition to the Galapagos. The species is so 

 similar to P. auricularis that it has not been considered necessary to figure it. 



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