648 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



1 spec, Sept. 12).— Roberts, Auk, xvi, 1899, 241, in text (Minnesota, from 

 Red Wing northward, in summer).— Bangs, Proc. Biol. See. Wash., xiii, 

 1899, 105 (Chirua, Santa Marta, Columbia, Feb. 7).— Bishop, N. Am. Fauna, 

 no. 19, 1900, 91 (Sixtymile Creek, etc., Alaska).— Beuner, Proc. Nebr. 

 Cm. Un., 2d ann. meet., 1901, 57 (Sioux Co., w. Nebraska, breeding). 

 S[eiums] noveboracensis notabilis Ridgway, Man. N. Am. Birds, 1887, 519. 



Genus TERETISTRIS Cabanis. 



Teretistris' Cabanis, Journ. fiir Orn., iii, Nov., 1855, 476, in text. (Type, Anor 



bates fernandinx Lembeye. ) 

 Terelristis Baied, Review Am. Birds, Apr., 1865, 233. 



Rather small terrestrial Mniotiltidee with rictal bristles obsolete, 

 wing-tip shorter than exposed culmen, commissure equal to or longer 

 than middle toe with claw, maxilla strongly decurved, and the ninth 

 primary shorter than the first; the plumage plain gray above (pileum 

 and hindneck olive-green in one species), the under parts plain yellow, 

 or whitish with yellow throat. 



Bill nearly as long as head, the maxilla strongly decurved terminally, 

 rather acute at tip, without subterminal tomial notch; mandibular 

 tomium slightly convex, more decidedly arched subbasally, the rictal 

 portion of the commissure decidedly and rather abruptly deflexed; 

 gonys nearly straight, decidedly shorter than distance from nostril to 

 tip of maxilla. Nostril wholly exposed, longitudinal, narrowly oval, 

 with broad superior membrane. Rictal bristles obvious but very 

 weak. Wing moderate, very much rounded (seventh and sixth prima- 

 ries longest, ninth shorter than first, and eighth shorter than fifth); 

 wing-tip shorter than exposed culmen. Tail slightly shorter than 

 distance from bend of wing to tips of secondaries, slightly to decidedly 

 rounded, the rectrices rather narrow, with obtusely rounded tips. 

 Tarsus about one-third as long as wing, its scutella obsolete or fused 

 on outer side; middle toe with claw much shorter than tarsus; basal 

 phalanx of middle toe united to outer toe for more than half its length, 

 to inner toe for rather less. 



Coloration. — Above plain gray, the pileum and hindneck olive-green 

 in one species; beneath mostlj^ plain yellow, or whitish medially and 

 gray laterally, with chin and throat yellow. 



Nidijication. — Arboreal. 



Range. — Island of Cuba, Greater Antilles. (Two species.) 



KEY TO THE SPECIES OF TEBETISTRIS. 



tr. Pileum and hindneck olive-green; breast grayish or grayish white, very faintly, 



if at all, tinged with yellow. (Western Cuba. ) 



Teretistris fernandinse, adults (p. 649) 

 aa. Pileum and hindneck gray, like rest of upper parts; breast yellow, like throat 



(Eastern Cuba. ) Teretistris fornsi, adults (p. 649) 



'"Von TE^sriZoo, zwitschern." 



