THRYOPIIILUS. 



133 



Tliryopliilus castaiieiis. 



Thryothorus castaneiis, Lawr. Ann. N. Y. Lye. VII, 1861, 321, no. 193 

 (Panama R. R.). 



JIab. Line of Panama R. R. 



(No. 99, '^ .) Above dark chestnut-brown ; the wings and tail black, their 

 exposed surfaces, except perhaps middle and lesser coverts, banded with 

 chestnut ; the two sets of bands about equal on the wings ; on the tail the 

 black ones nearly double the others. The second and third lateral tail 

 feathers not banded internally, except at tip. No bands whatever on back 

 and rump. Top and sides of head black ; a line from bill over eye, eyelids, 

 and a band from side of lower jaw curving round over the ears, white — the 

 latter bounded inferiorly by a black line from lower jaws bordering the ear 

 behind, and running into the black of the nape. Chin and upper throat 

 white, passing insensibly into reddish-fulvous on the jugulum, and posteriorly 

 into deep chestnut. The breast, sides, and crissum are barred transversely 

 with black, less distinct along the middle line. Inside of wings chestnut. 



The white crescent on the side of head is separated from the white lower 

 eyelid by a black space. 



Female similar, but smaller, with shorter bill. 



Male : Total length, 6.00 ; wing, 2.75 ; tail, 2.40 ; graduation of tail, .70 ; 

 length of bill from forehead, .90, from nostril, .60 ; along gape, 1.00 ; tarsus, 

 1.03 ; middle toe and claw, .90; hind toe and claw, .74; claw alone, .35. 



Female : Bill from forehead, .80 ; nostril, .49 ; gape, .91. 



d.) Type. (99, ?.) Do. 



Tliryopliilus scliottii. 



Thryophilus schotlii, Baird, n. s. 



Thryothorus nigricapillus, Cassin, Pr. A. N. Sc. 1S60, 193 (Truando). 



Not of SCLATER. 



Hab. Isthmus of Darien. 



Markings above and on the head precisely similar to those of T. castaneus. 

 Under parts, from chin to anal region, white, the flanks and crissum tinged 

 with chestnut ; the whole extent from chin to tail, including inner wing 

 covert, barred transversely and distinctly with black, the black bars a little 

 the narrower. 



No. 17,901. Total length, 5.60; wing, 2.70; tail, 2.25; graduation of tail, 

 .65 ; exposed portion of 1st primary, .95, of 2d, 1.50, of longest (measured 

 from exposed base of 1st primary), 2.00 ; length of bill from nostril, .50 ; along 

 gape, .90 ; tarsus, .96 ; middle toe and claw, .85 ; hind toe and claw, .70. 



