440 



w! . cJ ad. sk. 



n. 2 juv. sk. 

 o' . Juv. sk. 



p' . Ad. sk. 



q' . (S ad. sk. 

 /•'. Ad. sk. 

 s'. Vix ad. sk. 

 t' . Imm. sk. 

 ii! . S imni. sk. 

 v' . Imm. sk. 



%o' . Ad. sk. 



.(•'. c? ad. sk. 

 y' . (S imm. sk. 

 z' . Imm. sk. 

 «", 6". c? imm. sk. 



c". Ad. sk. 

 ^/". Ad. sk. 



e". Juv. sk. 



/'. 5 fckeleton. 



//". Sternum. 

 K' , i". Heads in 



spirits. 

 h", I". Pull, in 



spirits. 

 m", »". Ad. et pull. 



in spirits. 



Dinagat, June {A. H. Tweeddale Coll 



Everett). 

 Zamboanga, May {A. H. E.) 

 Tiga I., N. Borneo. 



Labuan I., Borneo. 



Celebes, Sept. 



North-east Halmab^ra. 



Salawatti. 



Amboina. 



Ke Island. 



Huon Gulf, N.E. New Guinea 



{Dr. Comrie). 

 Murray I., Torres Straits. 



Raine I., N.E. Australia. 

 Raine I., June 15. 

 Queensland (/. T. Cockerell). 

 Levuka, Fiji, Mar. 21 [E. 



L. Layard). 

 Howland I. 

 Asuncion I., Paciiic, Long. 



150°E.,Lat.]8°N.,May.3O. 

 [Straits of Magellan] (Capt. 



P. P. Kiny). 

 Costa Rica, Sept. 10. 



Jamaica. 



Raine I., N.E. Australia. 



St. Paul's Rocks. 



9. Sula brewsteri. 



Tweeddale Coll. 



A. H. Everett, Esq. 



[C.]. 

 A. H. Everett, Esq 



[C.]. 

 C. Hose, Esq. [C.]. 

 Wallace Coll. 

 Wallace Coll. 

 Wallace Coll. 

 Wallace Coll. 

 Tweeddale Coll. 



Rev. J. Macfarlane 



[P.]. 

 ' Challenger ' Exped. 

 Old CoU. 



Salvin-Godman Coll. 

 Tweeddale CoU. 



Hume Coll. 

 Lieut. Davies [P.]. 



The Admiralty [P.]. 



Capt. W. H. MUner 



[P.]. 

 P.H.Gosse,E8q.[C.]. 

 ' Challenger ' Exped. 



' Challenger ' Exped. 



' Challenger ' Exped. 



12o 



Dysporus leucogaster Sundev. {nee Bodd.), P. Z. S. 1871, p. 



(Galapagos Is.). 

 Sula leuccigastra, Salviv, Tr. Z. S. ix. p. 496 (1876) [Galapagos Is.] ; 



Streets, Bull. U.S. Nat. Mus. vii. p. '22 (1877) [Gulf of California]. 

 Sula fiber, Cooper, Bull. Nutt. Orn. C. ii. p. 96 (1877) [Coast of 



California]. 

 Sula brewsteri, Goss, Auk, v. p. 242 (1888) [San Pedro Martirl.]; 



Shufeldt, Auk, vi. p. 67 (1889) ; A. O. U. Check-l. p. 40 (189.5) ; 



Eidyiv. Man. N. A. B. 2nd ed. p. 585 (1896). 



Adult male. Much like S. sula, but the head and throat are 

 white, shading into smoky grey on the neck, the colour gradually 

 deepening into brown on the chest and interscapular region. 



Bill olive-blue ; lores and bare space round eyes indigo-blue ; 

 gular sac dull slate-blue with a greenish tint ; legs, feet, and webs 

 light pea-green {N. S. Goss). 



Adult female. Somewhat larger than the male, and similar in 

 plumage to S. sida. 



