514 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Cactornis ahingdoni Sclater and Salvix, Proc. Zool. Soc. Lond., 1870, 323, 326 

 (Abingdon I., Galapagos Archipelago; coll. Salvin and Godman^). — Salvin, 

 Trans. Zool. Soc. Lond., ix, pt. ix, 1876, 486 (Abingdon I.). — Sharpe, Cat. 

 Birds Brit. Mus., xii, 1888, 20 (Abingdon I. ).— Ridgway, Proc. U. S. Nat. 

 Mas., xii, 1889, 108 (Abingdon I.). 



\_Cactornis] abingdoni Sclater and Salvix, Noni. Av. Neotr., 1873, 29. 



G.[eospiza'] abingdoni Ridgway, Pnjc. U. S. Nat. Mus., xvii, no. 1007, Nov. 15, 

 1894, 361, in text. 



Geospiza abingdoni Ridgwav, Proc. U. S. Nat. Mus., xix, 1897, 540, pi. 57, fig 5 

 (monogr. ). 



Geospiza scandens abingdoni Rothschild and Hartekt, Novit. Zool., vi, Aug., 

 1899, 165 (Abingdon and Bindloe islands). 



Cactornis assimiUs (not of Gould) Sclater and Salvix, Proc. Zool. Soc. Lond., 

 1870, 323 (Bindloe I.) .—Salvix, Trans. Zool. Soc. Lond., ix, pt. ix, 1876, 486 

 (Bindloe I.).— Sharpe, Cat. Birds Brit. Mus., xii, 1888, 18 (Bindloe I.). 



\_Cactornis'] assimilis Sclater and Salvin, Nom. Av. Neotr., 1873, 29. 



Geospiza assimilis Ridgway, Proc. V. S. Nat. Mus., xix, 1897, 537, part (in syn- 

 onymy) . 



GEOSPIZA BREVIROSTRIS Ridgway. 

 SHORT-BILLED CACTUS FINCH. 



Similar to G. alnngdoni and other .stout- billed C'actornithes^ but wing 

 shorter, tail longer, feet .smaller, and with l)ill .shorter and deeper and 

 wider at base. 



Male^ nearly adult (Tj^^e, No. 115920,' Charles Island, Galapagos, 

 April 8, 1888; U. S. Fish Commission steamer ^/^«i^ri9.ss). — Dull sooty 

 blackish, uniform on head, neck, and chest, elsewhere broken by lighter 

 margins to feathers, these edgings dull light grayish brown on upper 

 parts, dull brownish white on lower parts; sides and flanks washed 

 with pale brown; under tail-coverts dull bufi'y white, with concealed 

 mesial streaks of dusk}"; bill entirely black; tarsi deep brown; toes 

 brownish black; length (.skin), 111.30; wing, 68.58; tail, 16.99; culmen, 

 17.78; gonj^s, 10.16; width of mandible at base, 9.10; depth of bill at 

 base, 11.43; tarsus, 20.83; middle toe, 15.75. 



% Adult female (^o. 77756, U. S. Nat. Mu.s.; Indefatigable Island, 

 August 10, 1868; Dr. A. Habel).^ — Above dusky, all the feathers mar- 

 gined with gra}' ish olive, this color prevailing (almost uniform, in fact) 



greater wing-coverts more broadly margined (especially at tips) with a more ijro- 

 nounced buffy tint; under parts more grayish dusky than upper surface, nearly uni- 

 form as far back as chest, elsewhere, especiallj' on abdomen, broken by irregular 

 streaks of dull grayish white; bill pale buffy brown, deejoer brown on basal half of 

 maxilla (except on culmen) and along deflected portion of the mandibular tomium; 

 legs and feet blackish brown; "iris dark brown." Length (skin) 127.00; wing, 

 72.39; tail, 45.72; culmen, 20.32; gonys, 11.68; width of mandible at base, 8.89; 

 depth of bill at base, 10.67; tarsus, 22.86; middle toe, 17.27." 



'Type now in collection of the British Museum. 



^This specimen is referred with .some doubt to G. brevirostris, but if it is not the 

 same form it is certainly distinct from the ordinary "Cactornis" of the same island 

 ( G. fatigata). It is apparently an adult female, with wholly light cinnamon colored 

 bill and streaked x>lmiiage, lacking the buffy margins of the middle and greater wing- 



