BIRDS OF NORTH AND MIDDLE AMERICA 



223 



Tlympanudius] pallulicinctus Ruxjway, 5ilan. North Amer. Birds, 1887, 203. — 

 Petsides, Trans. 7th North Amer. Wildlife Conf., 1942, 318 in text (age indi- 

 cators in plumage). 



[Tympanuchus] piiHidicitictiis Sh.\rpe, Handlist, i, 1899, 20. — Dwight, Auk, xvii, 

 1900, 163 (molt). 



( ?) Tympanuchus amcricanus Lacey, Auk, xxviii, 1911, 206 (Kerrville, Tex., 1885, 

 1886). 



Genus CENTROCERCUS Swainson 



Cci'.trocercus S\v.\iNSox, in S^vainson and Richardson, Fauna Bor.-Amer., ii, 1831 



(1832"!. o.^S. 496. (Tj-pe, by monotj-py, Tetrao urophasianus Bonaparte.) 

 Cciitrocirds (emendation) Swainson, Classif. Birds, i, 1836, 110. 



Large terrestrial Tetraonidae (^wing about 266-331 mm.) wnth tarsus 

 longer than middle toe with claw; intemasal portion of culmen longer 

 than apical portion, and tail about as long as wing, strongly graduated, 

 consisting of 18 narrow, attenuated, rigid rectrices; adult males with 

 an inflatable air sac on sides of neck and with feathers of lower neck, 



FiGtJSE 13. — Ccni-'^cercus urophasianus. 



