436 Bulletin of the British 



fine series of the new Sulci described hereafter. Of the 105 

 species enumerated by Ridgway as occurring in the Gala- 

 pagos Islands, good series of nearly all were obtained. 

 Several authors have mentioned the breeding-place of an 

 Albatross on Hood Island, but no specimens were ever 

 collected; while two species of Albatross were mentioned 

 by former visitors to the islands, and Ridgway suggested that 

 they would be Diomedea exulans and D. nigripes. The present 

 expedition, however, found only one species of Albatross on 

 Hood Island, and that proved to be Diomedea irrorata 

 Salvin, of which hitherto only the type in the British 

 Museum was known. The second supposed dark species 

 will probably be the young of the above. 



In addition to nearly all the species known to inhabit the 

 archipelago, examples of several others were obtained, some 

 seven or eight of which are new to science. 



Mr. Hartert will show you the type specimens of six new 

 species, of which I send you the descriptions. One species 

 is named after Mr. Frank Blake Webster, who arranged 

 and sent out the expedition, and one after each of the 

 collectors. 



PhALACROCORAX HARRISI, sp. n. 



This is the most remarkable discovery made during the 

 expedition. 



Adult : upperside brownish black, bases of feathers 

 blackish grey ; scapulars and wing-coverts dark hoary grey, 

 with black borders ; a number of white filaments scattered 

 about head and neck. Underside a mixture of pale brown 

 and grey; tail black; quills blackish brown, with greyish 

 tips on outer margin. 



This bird is the largest known Cormorant, being if any- 

 thing bigger than the extinct Ph. perspicillatus, and its wings 

 are quite soft and incapable of flight, and of about the same 

 size as the wings of the Great Auk, Alca impennis. 



Wing of Ph. harrisi, 7 to 7'5 inches. 

 ,, Alca impennis, 6*7 inches. 



Hab. Narborough Island, Galapagos group. 



