522 BIRDS FBOM SEYCHELLES AND VICINITY— RIDGWAY. vol.xviii. 



8. variegata, Tsclindi, of the coast of Peru, somewliat lesembles this 

 species in coloration, having, like it, the flanks (also the back) spotted 

 with black, and the inner webs of the remiges and rectrices white 

 basally; but *S', varief/ata is a bird of very different proportions, having 

 a very slender bill (like that of N. iwhouxi) and proportionally more 

 graduated tail, with much narrower and more pointed feathers, besides 

 being considerably smaller in all its dimensions. 



Just what differences of coloration exist between adults of the two 

 species I am not able to state, since the single specimen of S. rarier/ata 

 which I have been able to examine is an immature bird. 



Comparative measurements of Siila ahbotti, S. cyanops, S. nchouxi, and S. variegata. 



' The second measurement indicates the diftereuf o in lengtli between the longest and shortest rec- 

 trices. 



Family FEEGATID.E. 



7. FREGATA AQUILA MINOR (Gmelin). 



No Specimens. 



Family PHAETONTIUaE. 



8. PHAETON RUBRICAUDUS. Boddaert. 



One specimen, September 18. 



" Breeds on Assumption and Gloriosa. Xests on the ground in dense 

 thickets or under a bush." (Abbott, MS.) 



No si)eciniens. 



Family COLl^MBID.E. 



9. TURTUR ALDABRANUS, Sclater? 



Family CITCFLID^F. 

 10. CENTROPUS INSULARIS, Ridgway. 



Cnitropiis hisiilaris, Ridgway. Proc. U. S.Nat. Mns., XVII, 1894, p. 373 (.Vssnmp^ 

 tion Island; ILS.N.M ). 

 S2)ecifie <'h(n-acter.<'i.—Qmte identical in nuptial plumage with C, toidoit 

 (Midler); in other plumages, however, very much paler, the posterior 

 under parts barred with pale brownish buff and dusky, in nearly equal 

 quantity (uniform greeni^sh dusky in corresponding plumage of C. 

 toulou). 



