12 FRIN GILLID-ffi. 



but differing in the form of the bill. Total length 4-9 inches, 

 culraen 0*6, wing 2-65, tail 1-55, tarsus 075. 



Hub. Charles Island, Galapagos ; ? Chatham Island. 



a. 2 a d. sk. Galapagos Archipelago (C Dar- Zoological Society. 



win). 



b. <5 ad. sk. Charles Island, Feb. 1880 (A. H. Salvin-Godman Coll 



Markham). 



7. Geospiza difflcilis. 



Geospiza dentirostris (nee Gould), Scl. 8f Salt). P. Z. S. 1870, p. 323; 



Salvin, Trans. Z. S. ix. p. 482 (1876, pt.). 

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



Adult male. Similar to G. fortis, but much smaller and with a 

 more pointed bill. Total length 4-1 inches, culmen - 55, wing 1-45, 

 tail 1-35, tarsus 0"8. 



Adult female. Similar to the female of G. fortis, but Yery much 

 darker and more uniform brown above, and more thickly mottled 

 below. Total length 3-8 inches, culmen 0-55, wing 2 - 4, tail 1*3, 

 tarsus - 75. 



In the adult males the wing measures 2*45-2-5 inches, and the 

 tarsus from 0*75-0 - 8. An immature male has the wing 2-35, and 

 the tarsus - 75. 



Dr. HabePs specimens were collected in the month of December 

 and Captain Markham's in February, and in the whole series the 

 bill is entirely black. The bill, moreover, is not the same shape as 

 in the thick-billed Geospiza?, and were it not for the absolute grada- 

 tion in form from G. magnirostris downwards, it is doubtful whether 

 G. dentirostris and its allies ought to be placed in the same genus as 

 the thick-billed Geospiza. 



The present species was referred by Mr. Salvin to G. dentirostris, 

 but the smaller size and the differently shaped bill induce me to 

 believe that the two birds are distinct. 



Hob. Abingdon and Charles Islands, Galapagos. 



a. Irnm. sk. Galapagos Islands (C Dar- Zoological Society 



win). [s. n. S. strenua~}. 



b, e. d $ ad. ; d. rf Abingdon Island, Dec. 18G8 Salvin-Godman Coll. 

 inmi. sk. (Dr. A. Habel). 



e. $ ad. sk. Abingdon Island, Dec. Dr. A. Habel. 



/, g [ <$ ] ad. sk. Charles Island (A. H. Mark- Dr. A. Habel. 



ham). 



8. Geospiza fuliginosa. 



Geospiza fuliginosa, Gould, P. Z. S. 1837, p. 5 ; Darwin, Zool. Voy. 

 'Beagle; Birds, p. 101 (1811); Gray, Gen. B. ii. p. 359 (1844); 

 Bp. Consp. i. p. 543 (1850) ; -Scl. $ Salv. P. Z. S. 1870, p. 323 ; 

 Gray, Hand-l. B. ii. p. 88, no. 7301 (1870) ; Sundev. P. Z. S. 1871, 

 p. 125; Scl. $ Sain. Nomencl. Av. Neotr. p. 27 (1873); Salvin, 

 Trans. Z. S. ix. p. 482 (1876) ; Sharpe, P. Z. S. 1877, p. 66. 



Adult male. Similar to G. fortis, but much smaller, and having 



