PUFFINUS. 61 



(f. Lower tail-coverts entirely white. 



h}. Dusk}- of head extending far below the eye, the 

 white being almost confined to throat and 

 fore-neck ; wing 8.30, culmen 1.25, tarsus 1.55, 

 middle toe, with claw, 1.85. Hah. Indian 

 Ocean, and southeastward to New Zealand. 



P. obscurus (Gmel.). Dusky Shearwater.* 



/il Dusky of head not descending below the eye, the 



ear-coverts and greater part of lores being 



white ; wing 6.50, culmen about 1.00, tarsus 



1.25. Hab. Australian seas. 



P. assimilis Gould. Allied Shearwater. 

 e*. Above plumbeous, the larger wing-coverts, scapulars, etc., nar- 

 rowly tipped with whitish. 



Lower parts entirely white ; wing 7.30, tail 2.70, culmen 

 1.07, tarsus 1.70, middle toe, with claw, 1.95. Hah. 

 South Atlantic. 



P. elegans Gigl. & Salt ad. Elegant Shearwater.^ 

 cl Lower parts uniform dusky, or sooty gray (the chin and throat some- 

 times whitish). 

 d}. Bill black or dusky. 



e\ Culmen much longer than the combined length of the first 

 two divisions of the outer toe. 

 p. Wing more than 11.00 ; bill horn-gray or dusky brownish ; 

 under wing-coverts mottled with white and smoky 

 gray, and with dusky shaft-streaks. 

 g^. Under wing-coverts gray, transversely mottled with 

 white at tips; length about 16.00, wing 11.15- 

 12.00, culmen 1.60-1.75, depth of bill at base .50- 

 .55, tarsus 2.05-2.15, middle toe 2.05-2.20. Egg 

 2.58 X 1-78. Hab. North Atlantic, from the New- 

 foundland Banks to South Carolina on the Ameri- 

 can side. 



94. P. Strickland! Eidgw. Sooty Shearwater. 



g"^. Under wing-coverts white, transversely mottled with 



gray at tips; wing 11.15-12.00, culmen 1.55-1.70, 



depth of bill at base .45-.55, tarsus 2.12-2.35, 



middle toe 2.05-2.25. Hab. South Pacific, north, 



on American side, to California 95. P. griseus 



(Gmel.). Dark-bodied Shearwater. 



1 Procellaria ohscura Gmel., S. N. i. pt. ii. 1788, 559. Puffinus ohsmirus Reich., Novit. Synop. Av. Natat. 

 Dec. 1850 (second page). 



2 Puffinw assimilis Gould, P. Z. S. 1837, 186; B. Austr, vii. pi. 59. 



3 Puffinus elegans Giglioli & Salvadori, Ibis, 1869, 67, 68. Saltin, Rowley's Orn. Misc. pt. iv. 1876, 256, 

 pi. 34. 



