( 178 ) 



brown birds are fonud in the Galapagos Archipelago. They are, although uot in 

 their first plnmage, immatine birds, juid would, iiu dunbt, assume their white 

 garment a year or two later. 



This interesting form, which we do uot hesitate to consider a subsiiecies of .S. 

 piscatrix, is already described iu Baird, ]5rewer k Kidgway's Wafer-JJirt/s of yoitlt 

 Ame/-ica, II. \\ 182, from an adult /lv«a/c procured by Colouel A. J. Grayson on 

 Socorro Island in the lievilla (Jigedo gronp. 



This Gaunet is named as a compliment to Mr. Frank 15. Webster, of Hyde 

 Park, Mass., U.S.A. 



AVe consider the increased knowledge about this form to be one of the most 

 interesting results of the e.xpeditiou. These birds breed in enormous colonies. On 

 Clarion Island, in the Kevilla (iigedo group, the nests were found in the first week 

 of July. They were all jilaccd on bushes from 2 to 10 ft. from the ground, 

 comijosed of twigs, very shallow and lined with coarse grass. In the Galapagos 

 Island (Tower Island, last week in December) they were partly found on bushes, 

 partly on the ground. The eggs are like those of S. j>iscatrix piscatrix. 



2. Sula variegata (Tsch.). 



Di/nj>oru8 mriei/atus, Tschudi, Fauna Peru., Oni. p. 313 (1845). 

 Sula ciiritgiitu, Grant, Cat. D. Brit. Mus. XXVI. p. 434. 



Sata rijfin„i,s, lleichcnbacb, .Xalatures, PL XXIXc. Nos. 2280-90 (1850) ; Ridgway in Piw. U.S. 

 Xat. JIus. XIX. p. 595. 



This rare species of gannet has for a long time only been known in its spotted 

 juvenile i)lumagc. Grant (I.e.) has for the first time duly recognised and described 

 the adult bird, but he did not emjihasisc the close relationship to S. ci/a/iojjs. It is 

 most excusable that Sundevall and Baur should have mistaken the adult S. varieffafa 

 for S. ci/anops. The two are — in the adult plumage — nearly alike, e.Kccpt that 

 the bill is red or whitish pink, yellow towards the tiji, iu S. varkguta ; while it is 

 horn-colour or yellowish, but never reddish pink in S. ci/anops. The feet also are 

 evidently darker in S. variegata. The tail shows generally more white on the basal 

 portions of the midtlle rectrices, but this character is uot constant. 



S. variegata is evidently uot rare on the Galapagos Islands, being found from 

 Wenman and Culpepi)er to Charles, Hood, and Tower Islands. 



The nests arc placed in a slight hollow on the ground between the rocks 

 or on the clitfs, and consist of a few pebbles. The eggs are two in number, but 

 sometimes unly one was found. They are like the eggs of 6'. cganops. 



They breed iu colonics on Wenman, Culpepper, Hood, Gardner (near Charles), 

 and Tower Islands. 



3. Sula nebouxi Milne-Edw. 



Sula nebouxi, Milne-Edwards in An,,. S.„_: A»(. Znol. 52 (6), XIII. art. 4. p. 37. PI. XIV. (1882) ; 



Ridgway in Proc. i'.S. Xal. Mus. XIX. p. 59lj ; Grant, Cat. B Brit. Mus. XXVI. p. 435. 

 Sulag'Ksi, Ridgway in Aulc, V. p. 241 ; Ridgway in Pruc. U.S. A'a(. JIus. XII. pp. 114, 120, 121 



(1890). 

 Sula cyarwps (non Sundevall I), Salvin in Proc. Znol. Soc. Lund. 1883. p. 427. 



This species is frequent on the Galapagos Islands. We have it from Albemarle, 

 Barriugton, Abingdon, Hood, and Chatham, but they were observed on nr near most 

 of the other islands. ( 'urious to say, we have among twenty-six specimens only one 

 female. This, however, does not difl'er from the t/utle. 



A younger bird has the whole neck smoky brown, with paler tips to the 



