1. GEOSPIZA. 



11 



show a distinct approach to the dimensions of G. strenua, which, bein°- 

 found on the same islands, not improbably interbreeds with it. 



■Hob. Chatham, James, Charles, Indefatigable, Abingdon, and 

 Bmdloe Islands, Galapagos. 



a. 2 ad. sk. 



b. 2 ad. sk. 



c > «*■ 6 2 hum. sk. 



e,f 6 ad.; g. $ 



ad. sk. 

 h. ,5 imm. sk. 



i, k, I, m. <$ ad. ; 



»■<>. 2 a.d. ;p,q. 



d imm. sk. 

 r, s. 3 ad. ; t, u. 



2 ad. ; v, w. cJ 



c? imm. sk. 

 x. cJ ad. st. 



Charles Island (C. Dar- 

 win). 

 Galapagos Islands. 



Zoological Society [P.]. 



(Type iif species.) 

 Capt. Kellett and Lieut. 



Wood [P.]. 

 Salvin-Godman Coll. 



Abingdon Island, Dec. 



1868 (Dr. A. Habel). 

 Indefatigable Island, Sept. Dr. A. Habel TCI. 



1868. L J 



Indefatigable Island, Sept. Sclater Coll. 



1868 (Dr. A. Babel). 

 Indefatigable Maud. Sept. Salvin-Godman Coll. 



1868 (Dr. A. Habel). 



Bindloe Island, Nov. Salvin-Godman Coll. 



1868 (Dr. A. Habel). 



Galapagos (Dr. A. Habel). Sclater Coll. 



5. Geospiza nebulosa. 



Geospiza nebulosa, Gould, P. Z. S. 1837, p. 5 : Darwin, Zool. Vou. 

 'Beagle; Birds, p. 101 (1841); Gray, Gen. B. ii. p. 359 (1844); 

 Bp. Oonsp. i. p. 643 (1860); Gray, Hanl-l. B. ii. p. 88. no. 7300 

 (1870); Sundev. P. Z. S. 1871, p. 125; Scl. X Salv. Nomenci. Av 

 Aeotr. p. 27 (1873); Salvin, Trans. Z. S. vs.. p. 4-2 (1876). 



Adult female (type of species). Similar to the female of G. fords. 

 Total length 4-8 inches, culmen 005, wing 29, tail 1-6, tarsus 0"95. 



Mr. Salvin doubts if this is really distinct from G. fords, and it is 

 quite possible that connecting-links between the two species will 

 ultimately be discovered. 



Hab. Chatham and Charles Islands, Galapagos. 



a. $ ad. sk. . Chatham Island (C. Darwin). 



Zoological Society [P.J. 

 (Type of species). 



6. Geospiza dentirostris. 



, Zool. Voy. 

 359(1844); 

 p. 88, no. 7302 

 (18<0); Scl. $ Salv. Nomenci. Av. Neotr. p. 27(1873); Salvin, 

 Trans. Z. S. vs. p. 482 (1876, pt.). ' 



Geospiza fortis, Salvin, P. Z. S. 1883, p. 421 (pt.). 



Adult male. Similar to the male of G. fords, but with a differently 

 shaped bill, bowed in towards the end of the upper mandible and 

 slightly toothed on its cutting-edge. Total length 4-5 inches,' cul- 

 men 0-55, wing 2-65, tail 1-45, tarsus 0-75. 



Adult female (type of species). Similar to the female of G. fords, 



