488 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Mile.— L,ength (skins), about 121.92-1^1.78; wing, 71.63-76.20 

 (73.91); tail, 45.72-46.99 (46.23); culmen, 17.02-19.56 (18.64); gonys, 

 8.38-9.91 (9.40); depth of bill at base, 8.38-9.91 (9.40); width of man- 

 dible at base, 6.86-7.87 (7.37); tarsus, 22.86-23.88 (23.37); middle toe, 

 15.49-17.27(16.51).' 



7^,,„,,,/,.. —Length (skins), about 113.03; wing, 67.31-69.09 (68.33); 

 tail, 40.13-43.18 (41.66); culmen, 17.02-17.78 (17.53); gonys, 7.87-9.91 

 (S.89); depth of bill at base, 8.38-9.65 (8.89); width of mandible at 

 base, 7.11-7.62 (7.37); tarsus, 22.61-23.37 (22.86); middle toe, 15.24- 

 16.76 (15.75).' 



Galapagos Archipelago (Indefatigable, Jervis, Duncan, James, and 

 Albemarle islands; Chatham Island 1).^ 



Cactomis pallida Sci^ATEnund Salvin, Proc. Zool. Soc. Lond., 1870, 323, 327 (Inde- 

 fatigable I., Galapagos Archipelago; coll. Salvin and Godman).*— Salyin, 

 Trans. Zool. Soc. Lond., ix, pt. ix, 1876, 487.— Sharpe, Cat. Birds Brit. Mus., 

 xii, 1888, 20 (Indefatigable I.). 



[Caciornis] pallida Sclater and Salvin, Nom. Av. Neotr., 1873, 29. 



Caclornis pallida Sclater and Salvin?, Ridgway, Proc. U. S. Xat. Mus., xii, 

 1890, 109 (James I.). 



CaHornis pallida Baur, Am. Nat., xxxi, 1897, 782 (Duncan I.) , 783 (Chatham and 

 Jervis islands). 



Camarhynchus pallidus Ridgway, Proc. U. S. Nat. Mus., xix, 1897, 565, pi. 56, 

 fig. 7 (monogr.; Indefatigable, Jervis, and James islands). 



females, but in that case several of our birds from different collections would be 

 wrongly sexed." 



Without having seen the series in question I would not venture a positive opinion 

 as to this question, but would suggest that possibly the most yellowish birds without 

 distinct streaks are freshly molted adults, the distinctly streaked ones the young. 



^ Three specimens, immature. Messrs. Rothschild and Hartert give extreme 

 measurements (number of specimens not stated) as follows: Wing, 76.00-78.00; tail, 

 47.00-49.00; culmen, 17.00-18.00; tarsus, 23.00-24.00. 



^ Three specimens, one of them apparently adult. Rothschild and Hartert give 

 the following measurements for females: Wing, 73.00-74.00; culmen, 16. 



Specimens from different islands examined by me measure as follows: 



» Rothschild and Hartert, Novit. Zool., vi, 1899, p. 166. 

 * Now in the British Museum collection. 



