FREGETTA. 151 



very broad oval form. They are white, sprinkled with minute 

 dots of pink and purple which often form a cap or zone at one end 

 of the egg. They measure from 1-32 to 1-5 in length, and from 

 1 to 1-08 in breadth, 



1 . Australia. Salviu-Godman Coll. 



2. Western Australia. Gould Coll. 



22. Great Salvage Island, :27th April. Hon. C. Baring & W. R. 



Ogilvie Grant, Esq. [P.]. 



Genus FREGETTA, Bp. 



The eggs of the Petrels of this genus are of a broad oval form, 

 sometimes almost elliptical, and glossless. They are white, with a 

 cap or zone of pink or purple specks at one end and a few larger 

 markings scattered over the remainder of the shell. 



Pregetta melanogaster (Gould). 

 (Plate XII. fig. 2.) 



Thalassidroma melanogaster, Layard, Ibis, 1867, p. 459. 



Oceanitis tropica, Sharpe, Phil. Trans. 108. p. 130 (1879). 



Fregetta melanogastra, Salvin, Zool. ' Challenger^ Hxped. ii. pt. viii. 



p. 142 (1880; ; Scl. t. c. p. 151 (1880). 

 Fregetta melanogaster, Campbell, Nests ^- Egqs Austr. Birds, p. 70, 



tig. 647 (188.-]) ; Butler, Birds New Zeal.' 2nd ed. ii. p. 24 (1888) ; 



Sharpe, Rand-l. i. p. 122 (1899). 

 Cymodroma melanogaster, Salvin, Cat. Birds B. M. xxv. p. 364 (1896). 



One egg of the Black-bellied Petrel in the Collection measures 

 1'45 by 1*03. A second, which is of a long narrow cylindrical 

 form, measures l'2o by "73. 



1. Betsy Cove, Kerguelen Island. Voy. H.M.S. ' Challenger.' 



1. Falkland Islands. Voy. H.M..S. ' Challenger.' 



Fregetta albigularis (Fiiisch). 

 (Plate XII. fig. 1.) 



Fregetta albogularis, Lister, F. Z. S. 1891, pp. 295, 300. 

 Cymodroma albigidaris, Salciti, Cat. Birds B. M. x.kv. p. 367 (1896). 

 Fregetta albigularis, Sharpe, Hand-l. i. p. 123 (1899). 



The eggs of the White-throated Petrel measure from 1'45 to 1-6 

 in length, and from l"0o to I'lo in breadth. 



1 . Phrenix Island, Phoenix Group, Seebohm Coll. 



29th June {J. J. Lister). 

 5. Aneiteum, New Hebrides, Jan. Gould Coll. 



(/. Macgillivray). 



