410 



REVIEW OP AMERICAN BIRDS. 



[part I. 



It still remains to be determined whether there is any essential 

 family difference between the typical Turdidse and the Saxicolidse, 

 and whether a rearrangement of these groups, perhaps including 

 even the Sylviidse, may not be required. lu any case, however, 

 that the Myiadestinee must be embraced in the same series, I have 

 little question. 



The two genera of Plilogonatinse, as restricted, with the common 

 characters given above, difier as follows : — 



Phaenopepla. Crest narrow, pointed behind. Outer primaries broad, not 

 attenuated nor pointed at end ; the 1st half the 2d. Tail rounded, fan- 

 shaped ; feathers very broad, wider towards end. Bill feeble, rather 

 narrow, well bristled ; nostrils somewhat overhung by frontal feathers. 

 Sexes dissimilar; male black; quills with median white patch on inner 

 webs ; tail not varied. 



Ptilogonys. Crest broad, and decumbent. Outer primaries narrow, attenu- 

 ated and pointed at ends ; 1st about one-third the 2d. Tail even or 

 cuneate, feathers narrower. Bill stouter, much broader, fewer rictal 

 bristles ; nostrils much exposed. Sexes similar ; color cinereous ; wings 

 not varied ; tail feathers with median white patch on inner webs. 



PTILOGONYS. SwAixsoN. 



Ptilogonys, Swainson, Catal. Bullock's Mex. Mus. 1824. (Type P. 



cinereus.) 

 Ptiliogonys, Swainsois", Philos. Mag. I, May, 1827, 368. (Same type.) 

 Ptiliogonatus, Swainson, Zool. Jour. Ill, July, 1827, 164. (Same type.) 



Plumage soft, silky, glossy, and rather compact. Head with a broad, full, 

 soft crest, not pointed behind. Tibiae thickly tufted with full, soft feathers. 



Ptilogonys cinereus, Swaisson. (Mexico.) 



