174 



U. S. p. R K. EXP. AND StTEVEYS — ^ZOOLOGY — GENERAL REPORT. 



List of specimens. 



TYEANNU8 VOOIFEKANS, Swain son. 



Cassia's Flycatchei'. 



rjromnus »oci/erams, Swainson, Mon. Tyrant Shrikes in Quarterly Journal Sc. XX, Jan. 1826, 273 ^Ib. Philos. 



Mag. I, 1827, 368. 

 Tj/ranims cassinii, Lawrence, Ann. N. Y. Lyceum, N". H. V, 1852, 39 ; pi. iii, fig. 2, (Texaa.) 



Sp. Ch. — Bill from the forehead about as long as ihe head. Tail even or slightly rounded. Outer five primaries attenuated ; 

 the first four abruptly and deeply emarginated ; third quill longest, second and fourth a little less, first shorter than the sixth, 

 and half an inch less than the longest. Head and neck above and on the sides rather dark bluish ash ; the throat and breast 

 similar, and only a little paler. Rest of upper parts olive green tinged with gray, mixed with brown on the rump ; the upper 

 tail coverts and surface of the tail nearly black ; the outer web of the external feather and the tips of all pale brown. The chin 

 is white, in strong contrast to the dark ash of the throat ; the rest of the under parts bright sulphur yellow, (the sides olivaceous ;) 

 palest on the under tail coverts and inside of wing. A concealed vermilion patch in the crown, bordered by straw yellow. 

 Wing feathers brown, tinged with olive, becoming paler towards the edg^e. Length, 8.80 inches ; wing, 5.25 ; tail, 4.25. 



Hob. — Valley of Gila, eastward to Pecos river, Texas, and into Mexico, on table lands. 



