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. Soc. Wash., xiii, 

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

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

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

 *S'[m<rHs] noveboracensis notabilis JiiDGw AY, Man. N. Am. Birds, 1887, 519. 



Genus TERETISTRIS Cabanis. 



Teretistris^ Cabanis, Journ. fi'ir Orn., iii, Nov., 1855, 476, in text. (Type, Ana- 



bates fernandinie Lembeye. ) 

 Teretristis Baird, Review Am. Birds, Apr., 1865, 233. 



Rather small terrostnal Mniotiltidas with rictal bristles obsolete, 

 wino'-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 ^^ellow, 

 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 memln-ane. Rictal l)ristles obvious l)ut 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, slightl}' to decidedly 

 rounded, the rectrices rather narrow, with obtusely roiuided 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; l)asal 

 jihalanx 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 mostl}^ plain ^^ellow, or whitish medially and 

 gray laterally, with chin and throat yellow. 



Nldification. — Ar 1 )o real . 



Range. — Island of Cu])a, Greater Antilles. (Two species.) 



KEY TO THE SPECIES OF TERETISTRIS. 



n. Pileum and hindneck olive-green; breast grayish or grayish Avhite, very faintly, 



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



Teretistris fernandinae, adults (p. 649) 

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



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



^"Vou TEi^ETi'^oD, zwitschern." 



