BIEDS OF NOKTH AND MIDDLE AMERICA. 211 



1886, 187 (synonymy and diagnosis); Birds W. I., 1889, 74 (do.); Cat. W. I. 

 Birds, 1892, 17, 116, 132.— Bowdish, Auk, xx, 1903, 16 (habits; song, etc.). 

 [ Vireo] latimeri Gkay, Hand-list, i, 1869, 383, no. 5773. — Sclater and Salvin, 

 Norn. Av. Neotr., 1873, 12.— Cohy, List Birds W. I., 1885, 10. 



Genus NEOCHLOE Sclater. 



NeocMoe Sclater, Proc. Zool. See. Lend., 1857, 213. (Type, N. hrevipennii 

 Sclater.) 



Small Vireonidse (wing less than 60 mm.), similar to Vlreo in details 

 of form, but tail strongly rounded and coloration very different, the 

 back, rump, throat, chest, and sides being uniform slate-gray, in strong 

 contji'ast with bright olive-green of pileum, wings, and tail. 



Bill small, relatively deep and compressed terminally, rather broad 

 and depressed basally; exposed culmen not more than half as long as 

 tarsus, gradually but strongly curved from near base, the tip of max- 

 illa moderately uncinate; depth of bill at frontal antise about equal to 

 its width at same point, but at base of gonys decidedly greater than 

 its width at same place; gonys about equal to distance from nostril to 

 tip of maxilla, decidedly convex; maxillary tomium nearly straight, 

 distinctlj' notched subterminally, the straight mandibular tomium with 

 a corresponding very minute notch. Nostril oval, longitudinal or 

 slightly oblique, in lower anterior portion of nasal fossai, posteriorly 

 in contact with bristly antrorse feathers of frontal antise, the longer of 

 which extend over and beyond nostril. Rictal bristles long, extend- 

 ing beyond nostrils, at least three in number. Wing short and much 

 rounded; tenth primary about half as long as ninth, or a little more, the 

 ninth much shorter than secondaries; sixth, fifth, and fourth primaries 

 longest and nearly equal, the eighth shorter than third, and seventh 

 about equal to fourth; wing-tip about equal to exposed culmen, or 

 slightly longer. Tail nearly as long as wing," considerably rounded 

 (graduation about equal to length of maxilla from nostril). Tarsus 

 long and slender (slightly more than one-third as long as wing and 

 more than twice as long as exposed culmen), distinctly scutellate ante- 

 riorly; outer toe distinctly longer than inner, the latter (without claw) 

 appai'ently shorter* than 'hallux (without claw), its claw not reaching 

 to base of middle claw. 



ColoratioH. — Uniform slate color or slate-gray, with pileum, hind- 



aAccording to Professor Baird (Review Am. Birds, pp. 371, 372) the tail is longer 

 than the wing. This ia true if the tail is measured to the base of the coccyx, but if 

 the measurement is made to the end of the coccyx, between bases of the two middle 

 rectrices, as is done throughout the present work, the tail is then found to beshorter 

 than the wing. In fact,, several species of Vireo have the tail relatively quite as long, 

 and the wing quite as short and rounded, as NeocMoe. 



6 The toes of the single specimen examined have dried in such way that it is very 

 difficult to determine their relative length. 



