1. GEOSriZA. 13 



the vent and under tail-coverts black, the latter only tipped with 

 white. Total length 4*1 inches, culmen 0'5, wing 25, tail 1-5, 

 tarsus 0-75. 



Adult female. Resembles the female of G. fortis, but is much 

 smaller. Total length 3-9 inches, culmen Oo, wing 2*4, tail 1-25, 

 tarsus 075. 



Adult males(types) from Chatham Island have the wing 2-5 inches, 

 the tarsus 08. 



A female from the same place has the wing 2 - 4 inches, the 

 tarsus 0-~5. 



Adult males from Indefatigable Island measure: — Wing 2'5-2-fi 

 inches, tarsus 075-08. 



Adult females from Indefatigable Island measure: — Wing 2-4-2-4o 

 inches, tarsus O7-0 - 75. 



Young males from Indefatigable Island measure : — Wing 2-35-245 

 inches, tarsus 07-3. 



Hab. Chatham, James, Albemarle, and Indefatigable Islands, 

 Galapagos. 



a. $ ad. sk. Chatham Island (C. Geological Society. 



Darrein). (Type of species.) 



b. $ ad. sk. Chatham Island (C. J. Gould, Esq. 



Darwin) 



c. 5 ad. sk. Chatham Island (C. Salvin-Godman Coll. 



Darwin). 



d. e. i^2 & d. st. James Island. Sir W. Burnett and 

 f, g, h. Juv. sk. Admiral Fitzroy [P.]. 



Albemarle Island. Commander Cooksou 



if k. cJ ad. sk. [P.]. 



Indefatigable Island. 

 l,m. c? $ jun. sk. Indefatigable Island. 



n, o. $ ad. ; p. 2 a d. ; Indefatigable Island Salvin-Godman Coll. 

 q, r. d $ jun. sk. {Dr. A. Habel). 



Dr. A.HabeirC.1. 

 Dr. A. Habel [C.J. 



9. Geospiza parvula. 



Geospiza parvula, Gould, P. Z. S. 1837, p. 6; Darwin, Zool. Voy. 

 'Beagle,'' Birds, p. 102, pi. xxix. (1841); Gray, Gen. B. ii. 

 p. 359 (1844) ; Bp. Consp. i. p. 543 (1850) ; Scl. | Salt: P. Z. S. 

 1870, p. 323 ; Gray, Hand-l. B. ii. p. 88, no. 7303 (1870) ; Sundev. 

 P.Z.S. 1871, p. 125; Scl. et Salv. Nomencl, Av. Neotr. p. 27 

 (1873) ; Salvin, Trans. Z. S. ix. p. 483 (1876) ; id. Cat. Strickl. 

 Coll. p. 219 (1882). 



Adult male. Similar to G. fuli(/inosa, but smaller. Total length 

 3 - 9 inches, culmen 0-45, wing 2 - 35, tail 1*4, tarsus - 7. 



Adidt female. Similar to the same sex of G.fuliyinosa, but smaller. 

 Total length 3*7 inches, culmen - 5, wing 2-35, tail 1*3, tarsus 065. 



Youwj males resemble the adult females, but are rather more 

 thickly mottled with brown underneath. 



The very young birds of both sexes are nearly uniform whity 

 brown underneath, with pale rufous-brown edgings to the wing- 

 coverts. 



