J013 ' ''>■' The Panama Thrush Warble) I 3 



and < ■ ' nth. In Piranga, th<- wing is pointed by the ninth, eighth 

 and eventh primaries, the other extreme from Rhodinociehla 

 The l.'ii ter ha mum secondarie , and a quintocubital wing of cour ic 

 There are twelve rectrices which ar< uco< isively shorter from the 

 middle pair outward. These feathers are notable for their breadth 

 and softness; it, i . intere iting to find the tail feather . of Mitrospin- 

 (jitn similar. 



Alimentary Canal. The arrangement of the intestine and the 

 appearance of the entire alimentary canal is so similar to thai of 

 several other Passerine birds examined, Dumetella, Piranga, Seiurue, 

 thai no distinctive characters were found. The contents of the 

 stomach were examined in two specimens and while much of the 

 materia] was unrecognizable to my untrained eye, three item were 

 determined; beetles of at least four species, one of which was a 

 curculio; seeds, of which the mosl common was the hard gray 

 achene of ome sedge; large, irregular grain i of sand, with rounded 

 angles and of a bright ochre color. Tin, combination seems to 

 show clearly thai the birds are chiefly ground feed* r . 



Palatine Region. The bony palate of Rhodinociehla yields what 

 < < m to me the best indication of its relation hips. If one compj 

 thi pari of the skull in tanagers and in wood warblers, two points 

 of difference are shown which seem to be important. In the tana- 

 gers, the palatine processes are long and well developed while in 

 the wood warblers they are short and rudimentary. In the 

 tanagers, <h<- maxillo-palatinea are parallel for a shorl distance, 

 about the length of the inflated portion, hut in tin- warblers they 

 are parallel for ;i considerable distance and the increasing diver- 

 gence i le marked. Parker ' examined and figured everal ipeci< 

 of each family, and I have examined Piranga erythromelas and Seiu- 

 nn noveboracensis in addition, and these difference while not. ex- 



■ Parker, W. K , \hih, ■!,.,,, Zoo] 8oc London, vol. 10, \>\>. 251 -',\ i. 1.1 46 .1 

 Compare a pecially flga. 1 <>. i<i 16 ;""i fig 1 ::, pi, <ih. it, may be remarked in 

 pa Log thai Parker makea do reference to ;i "secondary palatine proceM" in 

 1'irnriti'i, although he examined Piranga rubra Shufeldt figured thi 1 processes ae 

 round In Habia CAuk, Vol. r,, p. 439; 1888) and gave them a name. / And them 

 conspicuous in 1 ad on coo Lilting Lucae' figure (Proc. 



1 . vol. is, p. 605; 1805) It will i«- teen that he Indicate* them al- 



though he make* oo reference to them There i do trace of them i" 8 1 trv <>r 

 DumtUlla, nor in Rhodinociehla They appear to be aeaodated with ■>. trongly 

 conlro tral bead though Shufel ■■ Lacking la Coo 



