N.,.ni6. PBOCEEDINGS OF THE NATIONAL MUSEUM. 539 



GEOSPIZA FATIGATA, Ridgway. 



Caciornis scandens (nee Gould), Sclateu aud Salvin, Proc. Zool. Soc, 1870, 

 p. 323 (Indefatigable Island). — Salvix, Trans. Zool. Soc. Lond., IX, Pt. ix, 

 1876, p. 485 (part: Indefatigable Island). — Ridgway, Proc. U. S. Nat. Mus., 

 XII, 1889, p. 108 (part: Indefatigable Island). 



Geos2)i~a 0'<similis (nee Cactornis aas'nnilis, Gould), Ridgway, Proc. U. S. Nat. 

 Mus., XVII, 1894, p. 3(31 (Indefatigable Island ; Albemarle and Jervis 

 islands?). 



Geosplza fatigata, Ridgway, Proc. IT. S. Nat. Mus., XVIII, No. 1067, April 23, 

 1896, p. 293 (Indefatigable Island, Galapagos Archipelago; U. S. Nat. Mus.). 



Specific characters. — Similar to G. intermedia,^ Ridgway, from Charles 

 Island, but slightly larger, with the bill, legs, aud toes decidedly longer. 

 Wing, 2.G5-2.82; tail, 1.05-1.7.".; enlmeu, 0.82-0.89; basal depth of bill, 

 0.40; basal width of mandible, 0.35-0.39; tarsus, 0.85-0.90. 



Range. — Galapagos Archipelago: ? Albemarle Island (Baur and 

 Adams); '?? Chatham Island (Baur and Adams); Indefatigable Island, 

 (Ilabel, Albatross, Baur and Adams) ; ? Jervis Island (Baur and Adams). 



Adult «/«/e.— Type, No. 11601S, U.S.KM.; Indefatigable Island, Gal- 

 apagos, April 12, 1888; C. H. Townisend. Entirely uniform black, 

 deepest anteriorly;' bill wholly deep black; legs and feet dark brown- 

 ish. Length (skin). 5.35; wing, 2.82; tail, 1.70; culnien, 0.82; gonys, 

 0.48; basal width of mandible, 0.35; basal depth of bill, 0.40; tarsus, 

 0.88; middle toe, 0.65. 



Immature male. — No. 11G050, I'.S.N.M. ; same locality, etc. Head and 

 neck nearly uniform grayish dusky; rest of upper parts similar, but 

 feathers broadly margined witli dull brownish gray, this color nearly 

 uniform on rump; under parts, posterior to throat, with feathers dusky 

 centrally and dull grayish white on margins, the former color prevail- 

 ing anteriorly, the latter posteriorly; bill wholly black; legs and feet 

 brownish black. Length (skin), 5.30; wing, 2.80; tail, 1.73; culmen, 

 0.89; gonys, 0.50; basal width of mandible, 0.35; basal depth of bill, 

 0.40; tarsus, 0.90; middle toe, 0.65. 



Adult female. — No. 116051, U.S.N.M.; same locality, etc. Similar to 

 the immature male described above, but upper parts more tinged with 

 olive and the ligliter color of the under parts tinged with pale dull buff; 

 numdible dark brown, blackish at base. Length (skin), 5.35; wing, 

 2.65; tail, 1.65; culmen, 0.82; gonys, 0.47; basal width of mandible, 

 0.39; basal depth of bill, 0.40; tarsus, 0.85; middle toe, 0.61. 



The specific name selected for this form has no reference to the name 

 of the island where the bird occurs, but was suggested by the tedious 

 character of the work involved in discriminating the forms of this diffi- 

 cult subgeneric group. 



The only " Oac/orM?,"?" that I have seen from Chatham Island is a 

 young male (No. 115941, U.S.N.M. ; Chatham Island, April 5, 1888; C. H. 



'The under tail-coverts are wanting, but in other specimens are broadly margined 

 with whitish, as in related forms. 



