194 Nichols and Mowbray, Two New Petrels. [A^"n 



TWO NEW FORMS OF PETRELS FROM THE BERMUDAS. 



BY JOHN T. NICHOLS AND LOUIS L. MOWBRAY. 



In 'The Auk,' April, 1906, p. 217, Mr. Thomas S. Bradlee re- 

 corded as gularis an Mstrelata from Bermuda. Since that date 

 the mounted bird has been in the Bermuda Museum of Natural 

 History, by which it has recently been courteously loaned to Mr. 

 Mowbray and critically examined by the writers. It is closer to 

 brevipes Peale, of the western Pacific, but unquestionably distinct. 

 This specimen is here made the type of a new species, and a Ber- 

 muda Puffinus (larger than Iherminieri which breeds rather com- 

 monly in the Bermudas) the type of a new race. 



iEstrelata cahow sp. nov. 



The type specimen, a mounted bird, Coll. Bermuda Museum of Natural 

 History, was taken by Mr. Mowbray, Feb. 22, 1906, in a rock crevice, 

 about 20 feet above high water. Southeast side of Castle Island. 



Upper surfaces dark sooty, darkest on the primaries, grayish on the back 

 and nape. Tail coverts (partially lost) dark gray, with white bases. 

 Rectrices grayish black with white bases. Inner web of the two outer 

 feathers white almost to the tip. Sides of the breast sooty gray. Primaries 

 dark beneath. Under wing-coverts white, with a peculiar oval dark spot 

 just inside the exposed primaries, as in hasitata. Tail cuneate. Forehead, 

 lores and underparts white. Center of forehead and white region above 

 the eye finely speckled with dark. The dark color from the side of the 

 neck extends narrowly forward under the eye. Bill dark. Legs, basal 

 third of foot, and inner toe, pale, remainder of foot dark. Wing 10|- in. 

 Tail 6^. Cuimen 1-^. Tarsus if. Middle toe and claw if. 



The name " cahow" was used by early settlers in Bermuda for an 

 Mstrelata abundant at Cooper's Island, a mile at the most from 

 where the type was taken and presumably of the same species. 

 Numerous partially fossil bones (including skulls) which, after 

 comparison, we believe to belong to the form here described have 

 been found by Mr. Mowbray in various caves in the eastern end of 

 the Bermudas, some about a half mile from where the bird was 

 taken. 





