488 BIRDS OF TEE GALAPAGOS ARCHIPELAGO— RIDGWAT. 



NESOMIMUS PERSONATUS, Ridgway. 

 (Plate LVI, fig. 5.) 



Nesoviimus personaiiiH, Ridcway, Proc. U. S. Nat. Mus., XII, No. 767, Feb. 5, 1890, 

 p. 104 (Abiiigtiou l.slaml, ( ialajKigos; <ollectioa IT. S. Nat. Mus.). 



Specific chafKctcr.s. — Similar to ^Y. melanotic (Gould), but much larger 

 aud darker, with sides aud Hanks more tinged with brown. 



Range. — Galapagos Archipelago: Abingdon Islaud (Townsend). 



AduU wa/t'.— Type, No. 110098, U.S.N.M.; Abingdon Island, Galapa- 

 gos, April IC, 1888; IT. S. ^.Albatross. Pileuni, hind neck, back, scap- 

 ulars, wings, and tail' dull blackish, the leathers indistinctly margined 

 or edged Avith dull grayish brown, these edgings much wider aud more 

 distinct on wing- aud tail-leathers; feathers of hind neck ash-gray 

 beneath the surface; lower back, rump, and upper tail-coverts dull 

 grayish brown, the feathers darker centrally, forming indistinct streaks; 

 middle aud greater wing-coverts broadly tipped with dull white, form- 

 ing two distinct bands across wing; remiges rather broadly margined 

 at tips with dull light brownish gray (more brownish on tertials); three 

 outer tail-feathers broadly tii)ped with pale grayish brown (fadiug into 

 dull white exteriorly), this color confined to the inner web on third 

 feather; fourth feather with a more restricted and less definite lighter 

 terminal space, and two middle pairs merely fading at ti})S into dull 

 grayish brown edged with dull whitish. A superciliary^ strii)e of dull 

 grayish white, nai'rower, whiter, and more shar])ly defined over lores; 

 lores, suborbital region, and auriculars dull black, forming a conspicu- 

 ous patch along side of head; malar region, sides of neck, and lower 

 parts white, the first si)eckle(l with dusky, the second spotted with same 

 posteriorly, and the latter tinged with light brownish, except on chin 

 and throat, the sides and flanks very distinctly washed or suflused with 

 brown, the latter broadly streaked or striped with dusky. IJill black, 

 inclining to horn color at tip of upper and base of lower mandible; legs 

 and feet brownish black. Length (skin), 9.30; wing, -4.50; tail, 4.1o; 

 exposed culmen, 1 ; bill from rictus, 1.35; tarsus, 1.43; middle toe, O.ST. 



Adult female— ::so. 110099, U.S.N.M.; same locality, etc. Essentially 

 like the male in coloration, but smaller. Length (skin), 9; wing, 4.10; 

 tail (feathers much worn), 3.90; exposed culmen, 1.07; bill from rictus, 

 1.40; tarsus, 1.35; middle toe, 0.80. 



Six additional adult males agree in all essential characters with the 

 type. 



'The specimen vas molting when shot, though the new i)lumage had hcen mostly 

 assumed; eonseqiiently, in this tlescriptiou, the duller, laded coloration of the old 

 feathers is ignored. 



