540 BTBDS OF THE GALAPAGOS ARCHIPELAGO— RIDGWAT. 



Townseud),!!! iiestliiii;- plumage (tliough lull growu). It may be refer- 

 able to the present form, but is just as likely to belong to a different 

 one, adult specimens being necessary to determine tbe question. 



Whether Albemarle and Jervis islands specimens really belong here 

 I am unable to decide, not having specimens at hand. 



Measurementu of Geoapiza futitjata. 



GEOSPIZA ABINGDONI, Sclater and Salvin. 



(Plate LVII, fig, 5.) 



Cactornis ahingdoni, Sclateu and Salvix, Proc. Zool. Soc, 1870, pp. 323, 32G 

 (Abingdon Island, Galapagos Archipelago) ; Nom. Av. Neotr., 1873, p. 29. — 

 Salvin, Trans. Zool. Soc, IX, Ft. ix,1876, p. 486 (Abingdon Island).— Sharpe, 

 Cat. Birds Brit. Mus., XII, 1888, p. 20 (Abingdon Island).— RiDGWAY, Proc. 

 U. S.Nat. Mus., XII, 1889, p. 108 (Abingdon Island). 



Glcospiza] abingdoni, Ridgway, Proc. U. S. Nat. Mus., XVII, 1864, p. 361, in text. 



Specific characters. — Similar to G. fatigata, Ridgway, of Indetatigable 

 Island, but still larger, and the bill much deeper, with culmen more 

 arched and sharply ridged. Adult male: Length (skins), 5-5.55; wing, 

 2.08-2.91'; tail, 1.55-1.77; culmen, 0.80-O.S8; gonys, 0.43-0.48; basal 

 width of mandible, 0.32-0.3o; basal depth of bill, 0.39-0.45; tarsus, 

 0.89-0.92; middle toe, O.G5-0.()8. 



Range. — Galapagos Archipelago: Abingdon Island (Habel; Town- 

 send). 



Adult male.—Jso. 116126, TJ.S.K.M.; Abingdon Island, April 16, 1888; 

 C. H. Towiisend. Uniform black, rather duller or more tinged with 

 grayish on under parts, especially posteriorly: under tail-coverts light 

 gray basally and broadly margined for exposed i)ortion with light bully, 

 with a large cordate or ovate blackish area between. Bill and feet 

 entirelj' black. Length (skin), 5.55; wing, 2.88; tail, 1.77; culmen. 

 0,88; gonys, 0.48; basal width of mandible, 0.33; basal depth of bill, 

 0.45; tarsus, 0.90; middle toe, 0.68. 



Immature male. — !N"o. 116129, U.S.j^.M. ; same locality, etc. Above 

 dull black, the feathers, except on head and neck, margined with dull 



