Capt. F. W. Hiitton on Birds seen during a Voyage. 185 



P. AFFiNis. Crowu of tlie male black, with broad white 

 forehead, and a small blackish spot on the nape, less developed 

 than in the Nubian bird. A third species, from Aden, may be 

 called 



P. sincipitalis, nobis. Male like that of P. grisea, but with 

 the crown and nape sooty-black, two white sincipital spots, a 

 small white medial frontal spot, and the feathers impending the 

 nostrils also white. This is, perhaps, the Arabian species 

 assigned to P. grisea. I am indebted to INIr, Dresser for a spe- 

 cimen of this species. The females of all three are probably 

 undistinguishable. There is a male of P. affinis in abraded 

 plumage in the British IMuseum, also marked " from Madras.'^ 

 It is surprising that the Black-capped Indian Pyrrhulauda has 

 not before been discriminated. 



X. — Notes on the Birds seen during a Voyage from London to 



New Zealand in 1866. By Captain F. W. Hutton, F.G.S. 



Lestris catarrhactes (L.). "We saw this species on ten oc- 

 casions during the voyage, between lat. 37° S,, long. 14° 36' W., 

 and lat. 45° 57' S., long. 145° 37' E., but never more than one 

 bird at a time. They never stayed long about the ship. Once 

 I saw it chase a Thalassidroma melanogaster, and at another time 

 I saw one chase a Procellaria gigantea ; but in neither case did 

 the pursuer get any food by doing so, I have also seen this 

 species settle quietly on the water to feed with the other birds. 



DiOMEDEA EXULANS, L. First seen on April 5th, in lat. 

 34° 15' S., long. 23° W. ; and from this they accompanied us 

 the whole way to New Zealand. They were not very numerous, 

 and we never saw more than nine during one day. Several of 

 the middle-aged birds had the pink mark {cf. Ibis, 1865, p. 278) 

 under each ear, but others had not. One was caught in lat. 

 43° S., long. 101° E. with this mark ; it was a male, measuring 

 10 feet across the wings, and weighing 16 lb. The fat on its 

 breast was half an inch thick : it was caught at 8^^ 30™ a.m., 

 and its stomach was quite empty. 



DiOMEDEA MELANOPHRYS, Boic. First seen on April 5th, 

 earlier in the day than D. exulans. These birds also accom- 



