602 BIRDS OF THE GALAPAGOS AncniPELAGO—IiTDGWAY. vol.xix. 



minute brownish gray specks, producing an indistinct finely speckled 

 appearance; sides of head and entire throat plain brownish gray, 

 darker on auriculars, which are bordered above and behind by a nar- 

 row, broken, postocular streak of white, which, curving downward 

 behind the auriculars, crosses the lower throat in a broader band, 

 broken by tlie jtartly exposed deep brownish gray bases to the feath- 

 ers; fore neck, medially, mottled or clouded with white tips to the 

 feathers, their l)ases being deep brownish gray, the sides of the neck 

 being uniformly of this color; a broken arched band of white on the 

 chest, with a broader one of deep brownish gray immediately beneath 

 it, whose lateral extremities, as are also those of the adjoining white 

 band, are continued posteriorly along the sides and Hanks to the inser- 

 tion of the legs; rest of under parts, also a large spot immediately in 

 front of eye and a yshaped mark on the chin, extending oL)liqQely 

 upward to the anteorbital spot, white. Maxilla mainly blackish, but 

 with the lower edge and a space in front of nostrils light brownish; 

 mandible liglit brownish, with about 0.00 of an inch of its terminal por- 

 tion, its upper edge (narrowly) and part of its basal portion, blackish; 

 legs and feet wholly blackish.' Length (skin), about 17.50; wing 

 (from insertion), about 5.40; culmen, 2.L*0; depth of bill at base, 0.75; 

 tarsus, from lower edge of tibial feathers, in front, 1.09; middle toe 

 (with claws), 2.32. 



BIBLIOGRAPHY. 



List of Books and Papers perlaininn to the Avifauna of the Galapagos Archipelago. 



GOITLD, J.: [Remarks on a group of ground finches from Mr. Darwin's collection, 

 with characters of the new species.] 



Proc. Zool. Soc. London, Pt. v, 1837, pp. 4-7. 



The so-called "ground finches" are divided into four genera, which are charac- 

 terized under the following generic names: Geospiza (type, G. magnirostris, 

 Gould), p. 5; Camarhynchns (type, C. psittaeula, Gould), p. 6; Cactornis (type, 

 C. seandens, Gould), p. (5; Certhidea (typo, C. olivaeea. Gould), p. 7. The new 

 species are as follows: Geospiza magniroslris, G. strcniia, G.forlis, G. nebiilosa, 

 G. fuligi}iosa,]}.r>; G. drntironfris, G. parvnla, G. dnhia, p. 6; Camarhiinchus 

 psittaeula , C. crassirostris.-p. G; Cactornis seandens, C. assimilis, p. 7; Certhidea 

 olivaeea, p. 7. 



Based on specimens collected l>y Charles Darwin during the voyage of the 

 Beagle. No localities, except the general one of "Galapagos Islands," are 

 mentioned. 



GOULD, J.: (Observations on the raptorial birds in Mr. Darwius collection, with 

 characters of the new species.] 



Proc. Zool. Soc. London, Pt. V, 18.37, pp. 9-11. 

 The new Galapagos species described are Pohjhurus gulapagoensix. ]>. 9. and Otus 

 (Braehijotus) galapagocnsis, p. 10. 



GOULD, J.: [Exhibition of the fissirostral birds from Mr. Darwin's collection, and 

 characters of the new species.] 



Proc. Zool. Soc. London, Pt. V, 1837, p. 22. 

 Jlirundo concolor is the only Galapagos species mentioned. 



' " Light parts of feet and bill light pinkish cream-biitf." (Adams, MS.) "Male, iris 

 walnut brown, with lighter inner ring.'' (Adams.) 



