3. THAMNOPHILUS. 195 



black with fine white striations ; flanks and crissum tinged with 

 rufous ; under wing-coverts fulvous ; bill dark plumbeous ; feet 

 brown : whole length 6 inches, wing 3, tail 2*7. 



Hah. Colombia. 



This is a species very distinct from anything I know, with a 

 somewhat feeble bUl ; its chestnut wings and tail and black head 

 with white striations render it easily recognizable. 



a. Ad. sk. Bogota. Sclater Coll. (Type of the species.) 



24. Thamnophilus stellaris. 



Thamnophilus stellaris, Sjnx, Av. Bras. ii. p. 27, t. xxxvi. fig. 2 ; 

 <SW. et >S(iIv. Nomencl. p. 69. 



Above dark plumbeous, with a large concealed white blotch on 

 the interscapulium ; centre of cap black ; wing-coverts with small 

 white apical spots : beneath paler, uniform plumbeous ; bill thick 

 and strong, dark plumbeous : whole length 5 inches, wing 2-8, 

 tail 1-4. 



Hah. Guiana and Amazonia. 



This appears to be the species figured by Spix ; it is remarkable 

 for its strong bill and short tail. 



(/. Ad. sk. British Guiana {Brown). Sclater Coll. 



b. Ad. sk. Amazons. Purchased. 



25. Thamnophilus tristis. 



Thamnophilus tristis, Scl. et Salv. Nomencl. pp. 09, 160. 



Above dull plumbeous, centre of cap slightly blacker ; wings 

 blackish, coverts tipped with small spots of white ; bend of wing- 

 also with small white spots ; tail blackish, with very slight white 

 ends to the outer rectrices : beneath as above, or very slightly paler ; 

 under wing-coverts grey, streaked with white ; bill and feet black : 

 whole length 6-2 inches, wing 2-9, tail 2-4. 



Hah. Caj'ennc and Eastern Brazil. 



This species is very nearly allied to Tli. stellaris, but has a more 

 compressed beak and longer tail. The external rectrices are also 

 slightly tipped with white. I am not confldent as to its distinctness. 



a. Ad. sk. Gyapoc, Cayenne. Sclater Coll. 



b. Ad. sk. Pernambuco, Brazil (Craven). Sclater Coll. 



26. Thamnophilus murinus. 



Thamnophilus murinus, Pelz. Orn. Bras. p. 77; Scl. et Salv. P. Z. S. 

 1867, p. 7oO, 1873, p. 273 (Upper Amazons) ; iid. Nomencl. p. 70 ; 

 Tacz. P. Z. S. 1882, p. 29 (N.E. Peru) ; id. Orn. Per. ii. p. 12 ; 

 Salv. Ibis, 188.5, p. 423 (Brit. Guiana). 



Above cinereous, with a concealed white spot at the base of the 

 interscapularies ; wings rather darker, coverts narrowly edged with 



