1883.] FROM WESTERN AMERICA. 431 



head and throat being rather paler than the body and with a plum- 

 beous rather than a sooty tint. 



As in C. leucorrhoa the wing-coverts are lighter than any part of 

 the wing ; but this species is obviously distinct, having a white rump, 

 as is also the case with Mr. Ridgway's C. cryptoleueura. 



Captain Markham's collection contains two specimens of this 

 species, which I propose to call after him. Both are marked as fe- 

 males. No species of this geuus has been previously noticed in these 

 seas, C. melania being from the coast of Mexico. 



138. Majaqtjeus ^quinoctialis (Linn.) ; Coues, Pr. Ac. Phil. 

 1864, p. 118 ; S.1IV. Orn. Misc. i. p. 232. 



2 . Coquimbo, Chili, June 1882. 



139. PuFFiNus GRiSEUs (Gm.) ;, Salv. Orn. Misc. i. p. 236. 

 Callao Bay, Peru, August ISSl. 



140. PuFFiNUS creatopus, Coues; Pr. Ac. Phil. 1861, p. 131 ; 

 Salv. Ibis, 1875, p. 376. 



cj. Coquimbo Bay, Chili, November 1881. 



141. PUFFINUS OBSCURUS (Gm.). 



Charles I., Galapagos. 



Not previously noticed in the Galapagos Archipelago. 



142. Thalassceca glacialoides (Smith) ; Coues, Pr. Ac. Phil- 

 1866, p. 30. 



6 ? . Coquimbo Bay, Chili, November 1881. 

 6 . Valparaiso, Chill, July 1882. 



143. OssiFRAGA GiGANTEA (Gm.) ; Coues, Pr. Ac. Phil. 1866, 

 p. 32. 



2 . Coquimbo Bay, Chili, November 1881. 



144. CEsTRELATA DEFiLippiANA, Gigl. & Salvad. ; Salv. Oru. 

 Misc. i. p. 255, pi. 33. 



2 . Coast of Chih, December 1881. 



145. ffisTRELATA NEGLECTA(Schl.) ; Mus. d. Pay s-Bas, vl. P/'O- 

 cell. p. 10. 



Juan Fernandez, March 1882. 



Two specimens in Captain Markham's collection are in all essential 

 particulars so much like one of MacGiilivray's examples of (E. neglecta 

 from the Kermadec Is., that I hesitate to separate them. The only 

 differences I can trace are in the coloration of the lower plumage, 

 which, in the Juan-Fernandez examples, is dusky instead of white, and 

 in the inner web of the primaries, exce])t at the tip, being white right 

 up to the shaft of the feather instead of having a dark strip dividing 

 the white portion of the web from the shaft. 



One of the Juan-Fernandez birds is rather lighter-coloured beneath 



29* 



