FOSSIL BIRDS. 439 



SupERFAMiLY PHASIANOIDEA. Grouse, Quails, 

 Pheasants, and Turkeys. 



Family TETRAONIDAE. Grouse and Ptarmigans. 



Genus DENDRAGAPUS Elliot, 



Dendragapus Elliot, Proc. Acad. Nat. Sci. Phila., [XVI] 1864, No. 1, 

 Jan.-Feb. [April 23], 23. Type, by subs, desig., Tetrao obscuriis Say 

 (Baird, Brewer and Ridgway, 1874) . 



Dendragapus obscurus (Say). Dusky Grouse. 



Tetrao obscurm Say, in Long, Exped. Rocky Mts., II, 1823, 14 (note). 



Modern form reported from Pleistocene: Samwel and Potter Creek Caves, 

 Shasta County, California. 



Genus BO NASA Stephens. 



Bonasa Stephens, in Shaw, General Zoology, XI, Pt. ii, Aug., 1819, 298. 

 Type, by subs, desig., Tetrao umhelliis Linnaeus (Gray, 1840). 



Bonasa umbellus (Linnaeus). Ruffed Grouse. 



Tetrao umbellus Linnaeus, Syst. Nat., ed. 12, I, 1766, 275. 



Modern form reported from Pleistocene: Cave near Frankstown, Pennsyl- 

 vania; Cumberland Cave, near Corriganville, Alleghany County, Mary- 

 land; Caves of Tennessee; Potter Creek Cave, Shasta County, California. 



Genus TYMPANUCHUS Gloger. 



Tympanuchus Gloger, Hand- und Hilfsbuch Naturg., 1842 [pp. 1-450, 

 1841], 396. Type, by monotypy, Tetrao cupido Linnaeus. 



Tympanuchus pallidicinctus (Ridgway). Lesser Prairie Chicken. 



Cupidonia cupido var. pallididncta Ridgway, Bull. Essex Inst., V, No. 12, 

 Dec, 1873, 199. 



Modern form reported from Pleistocene: Fossil Lake, Oregon. 



Tympanuchus lulli Shufeldt. 



Tympanuchus lulli Shufeldt, Trans. Conn. Acad. Arts Sci., XIX, Feb., 

 1915, 69, pi. XII, fig. 90. 



? Pleistocene: Hornerstown, New Jersey. 



