NO. inc. PROCEEDINGS OF THE NATIONAL MUSEUM. 559 



CAMARHYNCHUS PAUPER, Ridgway. 



(Plate LVI, tig. 11.) 



Camarhynchus pauper, Ridgway, Proc. U. S. Nat. Mus., XII, No. 767, Feb. 5, 1800. 

 p. Ill (Charles Island, Galapagos Archipelago; collection U. S. Nat. Mus.). 



^Specific characters. — Similar in form and coloration to C. prosthemehus, 

 Sclater and Salvin, but very much larger. Wing, 2.70-2.85; tail, 1.6o- 

 1.70; cnlmen, 0.50-0.58; basal depth of bill, 0.35; tarsus, 0.85-0.9G. 



Banye. — Galapagos Archipelago: Charles Island {Alhatross). 



Adult male.— No. 125968, U.S.N.M.; Charles Island, Galapagos, April 

 1, 1891; C. H. Townsend. Top of head and hind neck dull blackish 

 brown, indistinctly streaked with grayish olive; sides of head nearly 

 plain grayish olive, more dusky on cheeks; throat and chest dull black, 

 broken by occasional streaks of pale olive bu ft", this color predominating 

 on chin; rest of under parts very pale olive-buft', inclining to white, 

 the whole breast broadly streaked with blackish, these streaks con- 

 tinued backward over sides to flanks, both the latter being light buffy 

 olive laterally; under tail-coverts decided pale buff. Upper parts olive, 

 lighter on rump, the feathers of the dorsal tract much darker centrally, 

 forming very broad but rather indistinct dusky streaks. Bill entirely 

 deep black; legs and feet brownish black. Length (skin), 4.50; wing, 

 2.75; tail, 1.08; culmen, 0.55; gonys, 0.30; bill from nostril, 0.38; tar- 

 sus, 0.90; middle toe, 0.57. 



An adult male in more abraded plumage (No. 125969, U.S.N.M.; 

 Charles Island, April 1, 1891 ; C. H. Townsend) difiers from thatdescribed 

 above as follows : 



Head, all round, nearly uniform brownish black, passing into dusky 

 grayish brown on hind neck, and this into 

 plain dusky olive on dorsal region ; black of 

 throat and chest much more abruptly delined 

 against the bufty whitish of the breast, the 

 latter with far fewer and less distinct streaks, 

 the sides and flanks not streaked at all. Fig.i. Head of camarhynchus 

 Otherwise, the coloration is the same. Length pavpcr. 



(skin), 5; wing, 2.85; tail, 1.70 (much worn); ""''■ 



culmen, 0.58; gonys, 0.30; bill from nostril, 0.38; tarsus, 0.96; middle 

 toe, 0.60. 



Adult female.— Tyne, l^o. 115913, U.S.KM.; Charles Island, Galapa- 

 gos, April 8, 1888; U. S. S. Albatross. Above olive, the feathers of the 

 head and back slightly darker centrally, the olive color paler on the 

 the rump; wings and tail dull grayish dusky with lighter olive-grayish 

 edgings, these dull buffy on middle and greater wing-coverts ; supraloral 

 space and malar region pale dull grayish buffy; chin and throat similar 

 but paler and more grayish; rest of under parts pale buffy fading into 

 nearly white on belly; .sides and flanks tinged with grayish olive, and 

 chest very faintly flammulated with the same. Bill wholly grayish 



