478 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Group PLATYCICHLE^. 



Synopsis of the genera. 

 «' Outermost tail-feathers longer tlian the inner ones ; second primary shorter than 



the seventh Cossyphopsis. 



a" Outermost tail-feathers shorter than the inner ones ; second primary longer than 

 the seventh. 

 h^ First primary two-sixths to two-sevenths the second ; tail slightly rounded. 



Platycichla. 

 b^ First primary about two-fifths the second; tail emarginated and rounded. 



Turdampelis. 



Ee3IARIvS. — Tliis group shows a near relationship towards the Meru- 

 leer, with which some of the species of the two first geuera always have 

 been treated. The characteristic shortness of the gonys, however, 

 and the statement of Professor Baird of the very close relationship be- 

 tween the genus Platycichia and Turdampelis {CicMo2)sis), which. I my- 

 self have never seen, and between the latter and Myadestes,* led me to 

 the conclusion that their proper jjlace will be here within the Myadestina', 

 forming an intermediate link between the true Thrushes and the more 

 aberrant looking Myadestes. 



Cossyphopsis t Stejneger. 



Type Cossyplxopsls reevei (Lawr). 



Size moderate 



Cossijplwpsis reevd. 

 color uniform: throat marked with black streaks. 



Wing rounded, the third, fourth, and fifth primaries being longest, the 



*See Rev. Araer. Birds, I, p. 417 : " The latter genus I Platycichia'] is so closely re- 

 lated to Cichlopsis as almost to be the same," and op. cit., p. 434: "The relationship of 

 this genus [C(t7i/o7).sis] to jlfi/?afZcsfcs is very close. * * * lu fact, the only tangible 

 differences are in the stouter bill, rather more united toes, more compact plumage, 

 and absence of wing-pattern." In these respects the Cichlopsis agrees with the 

 Cossyphopsis and Platycichia, thus forming, as it seems, a very natural group. 



t Kbaav<poc=merula, u-djic=facie8. 



