Mr. G. N. Lawrence on new Birds from Panama. 183 



Upper plumage rather dull olive- green ; crown and sides of 

 the headj including the eyes, dusky olive-brown ; front greyish, 

 connected with a conspicuous superciliary stripe of white, which 

 terminates on a line with the occiput ; the crest is very narrow, 

 consisting of a few pointed feathers of bright vermilion ; wings 

 and tail of a liver-brown, the wing-coverts, primaries, and most 

 of the secondaries edged with pale rufous, a few of the inner 

 secondaries edged with pale yellow ; all the tail-feathers broadly 

 margined on both webs with pale rufous; throat greyish 

 white ; lower part of neck, breast, and abdomen deep yellow ; 

 the lower part of the abdomen and the under tail-coverts 

 paler yellow ; under wing-coverts deep yellow ; inner edges of 

 quills of a pale salmon-colour ; bill and legs black. 



Length 6 J inches; wingy^-^; tail 3; bill | ; tarsi y^. 



This species somewhat resembles M. similis, Spix, but is 

 smaller, the tail-feathers narrower, with their rufous edgings 

 paler and much broader. 



The very narrow crest is a striking character ; and as the spe- 

 cimen described seems to be in adult plumage, I judge it to be 

 fully developed. 



6. Myiobius atricaudus, sp. nov. 



Myiobius barbatus, Lawr. (nee Gm.), Ann. Lye. N. Y. vol. vii. 

 p. 328. 



Upper plumage greenish olive; crest bright yellow; rump 

 sulphur-yellow; quills blackish brown, narrowly edged with 

 olive-green ; tail black ; under plumage pale yellow, tinged with 

 pale fulvous on the throat ; upper mandible dark brown, under 

 mandible white, just tipped with brown ; legs brown. 



Length 4| inches; wing 2j ; tail 2f ; tarsi f . 



Male and female alike in plumage. 



Smaller than any of its allies, also paler below, and with less 

 tawny on the neck and breast even than in M. xanthopygius ; 

 the colour of the rump is about the same as that of M. sulphu- 

 reipygius, but more in extent, and the bill is rather smaller than 

 in that species ; the tail is black ; in all other species examined, 

 it is blackish brown. 



