FREUEIIA. 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. Salvin-Godman Coll. 



2. Western Australia. Gould Coll. 



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



Ogilvie Grant, Esq. [P.]. 



Genus PREGETTA, 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. 



Fregetta melanogaster {Gould). 

 (Plate XII. fig. 2.) 



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



Oeeanitis tropica. Sharps, Phil. Trans. 168. p. 130 (1879). 



Fregetta melanogastra, Salvin, Zool. ' Challenger' Exped. ii. pt. viii. 



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

 Fregetta melanogaster, Campbell, Nests ^ Eggs Austr. Birds, p. 70, 



fig. 647 (1883) ; Bailer, Birds New Zed. 2nd ed. ii. p. 24 (1888) ; 



Sharps, Hand-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 1'25 by '73. 



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



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



Fregetta albigularis (Finsch). 

 (Plate XII. fig. 1.) 



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

 Cymocb:oma albigularis, Salvin, Cat. Birds B. M. xxv. p. 367 (1896). 

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



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

 in length, and from 1"05 to 1"15 in breadth. 



1. Phoenix Island, Phoenix Group, Seebohm Coll. 



29th June (J. J. Lister). 

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



(J. MacgUlivray). 



