MONOGRAPH OF THE PETRELS. 



sign of adult plumage in C. grallaria, and of juvenile plumage in C. melanogaster. 

 In one specimen of G. grallaria from the South Indian Ocean in the British Museum 

 (Lat. 37° 30' S., Long. 42° E. — Macgillivray ; specimen "a" of Salvin's Catalogue, p. 367), 

 the throat is white, and the bird has very few white margins to the dorsal feathers, but 

 there is no sign of any black on the belly. 



Gould calls attention to the fact that C. grallaria has shorter toes than 

 G. melanogaster. I find this to be the case with the specimens in the British Museum ; 

 for in G. melanogaster the middle toe and claw vary from 0.95 inch to 1.2 inch, but 

 never exceed 0.9 in C. grallaria. 



A specimen from St. Ambrose Island obtained by Dr. Coppinger, shows only a 

 slight trace of white fringes to the dorsal feathers, but the breast and abdomen are 

 pure white without any trace of black. This seems to indicate that the white bars 

 disappear more or less in fully adult birds, but that the belly remains white at all ages. 



C. grallaria has not so extensive a range as C. melanogaster, but is, nevertheless, 

 widely spread over the southern seas. Gould writes (Handb. Birds Aust, II., p. 480) : — 

 " I observed it to be very generally distributed over the South Indian Ocean, but I 

 have reason to believe that it ranges over all the temperate latitudes between the 

 Cape of Good Hope and Cape Horn, and it is not unlikely that it may inhabit similar 

 latitudes in the South Pacific." 



Mr. A. J. Campbell considers it to be a scarce species in Australian waters, but 

 he records it as occurring off the coasts of Southern Queensland, New South Wales, 

 Victoria, South and West Australia, and Tasmania, but it has not been found nesting 

 on any of the Australian Islands, and, indeed, the breeding-place is as yet unknown 

 (cf. Campbell, Nests and Eggs Aust. Birds, II., p. 875). Macgillivray observed 

 C. grallaria near Orangerie Bay in S.E. New Guinea. 



From New Zealand this bird has not yet been recorded, but Forster obtained 

 a Storm-Petrel off Otaheite in 1773, which he referred to P. fregata, but the description 

 best suits the present species, though no mention is made of the white bars on the back. 

 During the voyage of the " Challenger," five specimens were obtained in the South 

 Pacific Ocean on the 11th November, 1875, when the ship was about Lat. 37° 29' S., Long. 

 83° 7' W. 



Dr. Edward Wilson says that on the voyage of the " Discovery " there were 

 several in the wake of the ship on the 18th September, 1901, and in the 

 Southern Indian Ocean on the 24th September in Lat. 37° S., Long. 8° W., but none 

 were seen in the winter months on the voyage home, either in the South Pacific or 

 Atlantic {Nat. Antarctic Exped., II., Zool, p. 80, 1807). 



Of the two specimens obtained by Sir George Grey off the Agulhas Bank, I have 

 already spoken in my article on C. melanogaster, and have expressed my belief that these 

 two birds have been wrongly registered in the British Museum " Catalogues " as 

 from South Australia. 



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