450 THALASSIDROMA BULWERII. 



be so called : — " The whole of the plumage is of a deep sooty- 

 black, becoming paler upon the throat, and brown on the 

 edges of the greater wing-coverts ; bill black ; legs and feet 

 blackish-brown." Mr. Gould prefaces this description with 

 the following notice : — " On the authority of Col. Dal ton of 

 Slenningford, near Ripon, w^e are enabled to add this rare 

 species to the Fauna of Britain, from a fine specimen which 

 was found on the banks of the Ure, near Tanfield, in York- 

 shire, on the 8th of May, 1837, and which could not have 

 been long dead, as it admitted of being mounted into a good 

 cabinet specimen. It is now in the possession of Col. Dalton, 

 who doubtless regards it as one of the gi-eatest treasures in 

 British Ornithology." An individual was procured at Scar- 

 borough in the spring of 1849, as stated in the Zoologist, 

 p. 2569, by E. T. Higgins. 



