256 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



NESOMIMUS BARRINGTONI Rothschild. 

 BARRINGTON ISLAND MOCKINGBIRD. 



Similar to N. melanotis, ' 'but distinguishable by a longer and slen- 

 derer bill, shorter wing, and generally paler upper surface." 



Adult male. — Wing, 108-111; tail, 110-115; exposed culmen about 

 28.« 



Adult female. — Wing, 99-104; tail, about 105; exposed culmen, 

 about 26." 



Barrington and Wenman islands, Galapagos Archipelago. 



Nesomimus varringtoni (typographical error) Rothschild, Bull. Brit. Orn. Club, 



viii, no. Ivi, Oct. 31, 1898, p. vii (Barrington Island, Galapagos Archipelago; 



coll. Tring Mus.). 

 Nesomimus melanotis caningtoni Rothschild and Hartert, Novit. Zool., vi, Aug., 



1899, 145 (crit.). 

 N[esomi7nus] melanotis carringtoni Rothschild and Hartert, Novit. Zool., vi, 



1899, 200. 

 [Nesomiviusl melanotis carringtoni Rothschild and Hartert, Novit. Zool., ix, 



1902, 416. 

 Nesomimus melanotis melanotis Rothschild and Hartert, Novit. Zool., vi, 1899, 



145, part (Wenman I.); ix, 1902, 382, 416, part (Wenman I.). 

 [Nesomimus] barringtonensis Baur, Am. Nat., xxxi, Sept., 1897, folded leaflet 



facing p. 778 (Barrington I., Galapagos; nomen nudum!). 

 Nesomimus melanotis barringtoni Snodgrass and Heller, Proc. Wash. Ac. Sci., 



V, Jan. 28, 1904, 368 (Barrington and Wenman islands; crit.; measurements). 

 [Nesomimus] barringtoni Sharpe, Hand-list, iv, 1903, 105. 



NESOMIMUS PARVULUS (Gould). 

 ALBEUABLE ISLAND MOCKINGBIRD. 



Essentially like N. melanotis (both adults and j^oung) in coloration, 

 but with much smaller and less curved bill, the exposed culmen 19-20; 

 sides of head less dark, and general coloration of upper parts paler; 

 in worn plumage a distinct brownish gray shade over chest, not pres- 

 ent in N. melanotis or other allied forms. 



Adult male.— Length (skins), 210-225 (217); wing, 105-111 (108.4); 

 tail, 103-113 (108.4); exposed culmen, 19-20 (19.7); tarsus, 35-37.5 

 (36.2); middle toe, 20.5-21 (20.8).^ 



O' Rothschild, in original description. Two males and two females from Wenman 

 Island in the collection of the U. S. National Museum measure as follows: 



ifaZes.— Length (skins), 206-217 (211.5); wing, 112-114 (113); tail, 105-110 (107.5); 

 exposed culmen, 23-24.5 (23.7); tarsus, 35-36.5 (35.7); middle toe, 22.5-23 (22.7). 



Females.— Length (skins), 200-203 (201.5); wing, 103; tail, 100; exposed culmen, 

 23-24 (23.5); tarsus, 32-33 (32.5); middle toe, 20.5. 



b Five specimens. 



