214 Dr. II. B. Sharpe on the 



XIV. — Report on the Birds obtained by the National Antarctic 

 Expedition at the Island of South Trinidad. By R. 

 Bowdler Sharpe, LL.D., F.L.S., &c. 



Dr. George Murray, F.R.S., has handed to me for descrip- 

 tion the small hut very interesting collection of birds and 

 eggs made by the officers of the ' Discovery ' on the island 

 of South Trinidad, accompanied by the excellent notes on 

 the species observed by Dr. Edward Wilson given in the 

 preceding paper. 



The species of which examples were obtained on the 

 island and in its vicinity were six in number, as follows : — 



1. SULA PISCATRIX. 



Sula piscator (Linn.) ; Saunders, P. Z. S. 1880, p. 163 ; 

 Ogilvie-Grant, Cat. B. Brit. Mus. xxvi. p. 432 (1898). 

 Sula piscatrix, Sharpe, Hand-1. B. i. p. 236 (1899). 



a. ? imm. Off South Trinidad, 20° S., 29° W., Sept. 12, 

 1901. Bill and skin round eye livid bluish ; tarsi and feet 

 almost vermilion-red; iris dull yellowish (E. A. W.). 



b. J ad. ; c, d, e. ? ad. South Trinidad, 20° 30' S., 

 29° 22' W., Sept. 13, 1901. Bill livid bluish, red at base ; 

 tarsi and feet red; iris dull yellow (E. A. W.). 



f. (Egg.) South Trinidad, Sept. 13, 1901. 



Of the five specimens obtained, four are in full white 

 plumage and one is in the brown livery of the second year, 

 as correctly surmised by Dr. Wilson, who has sent a beautiful 

 sketch of the head of an adult specimen. The egg is of the 

 usual Gannet type, a light greenish blue, more or less con- 

 cealed by a chalky covering : axis 235 in., diam. 1*75. 



Lord Lindsay (now Earl of Crawford), found this bird 

 nesting on the island when he visited it on the 20th of 

 August, 1874, and Mr. E. F. Knight mentions it several 

 times in his '" Cruise of the f Alert/ " 



2. FREGATA ARIEL. 



Fregata ariel (Gould) ; Ogilvie-Grant, Cat. B. Brit. Mus. 

 xxvi. p. 447 (1898); Sharpe, Hand-1. B. i. p. 237 (1899) ; 

 id. Monogr. Christm. Isl., Aves, p. 44 (1900). 



