BIRDS 241 



ovate, not much narrowed at the smaller end. The ground color is 

 dull whitish ; the surface is finely speckled with cinnamon color, 

 sometimes sparsely spotted about the larger end with small brown 

 blotches, but generally with a dark cap at the larger end of closely 

 speckled brown, extending for a varying distance toward the smaller 

 end of the egg, but always disappearing at one third of the distance, 

 often narrowly confined at the end. They measure 111x74; 112x74, 

 108x72; 113x71; 112x74; 10x569; 113x72. 



Family PROCELLARIID.E. 

 Genus Puffinus Brisson. 

 Pii^ Htis Brisso:^, Ornithologist, vi, p. 131, 1760. 



Range. — Cosmopolitan. Galapagos Archipelago. 



9. PUFFINUS OBSCURUS SUBALARIS (Ridgway). 



Puffinus tenebrosus? Town'SEND, Proc. U. S. Nat. Mus., xill, p. 142, 1890 



(Galapagos). 

 Puffifius tenebrosus TowNSEND, Bull. Mus. Comp. ZooL, xxvrr, No. 3, p. 



126, 1895 (Galapagos). 

 Puffinus subalaris Ridgway (from Townsend's MS.), Proc. U. S. Nat. Mus., 



XIX, p. 650, 1896 (Galapagos). 

 Puffinus obscurus subalaris Rothschild and Hartert, Novit. ZooL, vi, 



1899, pp. 194, 1895. 



Range. — Galapagos Archipelago. 



We quote the name of this form as a subspecies of Pttffiinus obscurus 

 from Rothschild and Hartert, having no material with which to make 

 comparisons. 



The bird is common about the Galapagos Islands, but it does not 

 appear to breed at many places. At Wenman it was common in 

 December, and was found on the main island in a cave near the south 

 end of the east shore. In the cave the birds were rather timid and 

 sought the darker parts of it when approached. When disturbed 

 while sitting on the floor and on ledges of the walls, they made no re- 

 sistance but simply got out of the way of the intruder by retreating 

 farther back into the cave or beneath loose rocks. They could not be 

 driven out. One bird was found here sitting on an egg which she 

 could not be made to leave, although she only passively resisted its 

 being taken by remaining motionless upon it. The egg was deposited 

 upon the bare ground near the wall of the cave. It is plain white, 

 somewhat elongate-ovate, and measures 52 x 35. 



We have three adult male and three adult female specimens taken 

 in December and January. 



