396 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



ee. Smaller, the back, etc., V)rowner gray; wing 58.5 in male, 52.5 in female; 

 tail 4fi in male, 44.5 in female. ( P^astern Florida. ) 



Penthestes carolinensis impiger (p. 406) 

 cc. Sides and Hanks gray, like back. (Highlands of Mexico, north to southern 



Arizona. ) Penthestes sclateri (p. 407) 



hh. A white superciliary streak. (Mountain districts of western United States.) 



Penthestes gambeli ({>. 408) 

 aa. Pileum brown. 



h. Back grayish brown; tail 54.5-68. 

 c. Sides of neck wliite; sides and flanks pale wood brown or brownish buff. 

 {PenUtesU'n cim'ius. ) 

 (L Darker and browner above; the sides light wood brown or fawn color. 



(Northern Europe. ) Penthestes cinctus cinctus (extralimital ). " 



dd. Paler and grayer above; the sides much paler fawn color or cinnamon-buff. 

 e. Bill larger (culmen 10). (Eastern Siberia. ) 



Penthestes cinctus obtectus (extralimital). & 

 ee. Bill smaller (culmen 9-9.5). (Northern Alaska.) 



Penthestes cinctus alascensis (p. 411) 



cc. Sides of neck gray; sides and flanks rusty brown or cinnamon-brown. 



{Penthestes hudsonicus.) 



d. Larger (wing 66 or more in male, 65 or more in female; tail 64 or more in 



male, more than 63 in female). « 



e. Paler and ))r(iwner above; the throat more sooty. (Labrador to Alaska. ) 



Penthestes hudsonicus hudsonicus (p. 412) 

 ee. Darker and less brown al)ove; the throat blacker. (Northern Rocky 

 Mountain district, from northern M()ntana to Cook Inlet, Alaska.) 



Penthestes hudsonicus columbianus (p. 414) 

 dd. Smaller (wing averaging 63.9 in male, 60.8 in female; tail averaging 60.6 

 in male, 59.1 in female). (Southern Labrador, New Brunswick, Nova 

 Scotia, and northern New England to northern New York.) 



Penthestes hudsonicus littoralis (p. 415) 

 bb. Back chestnut; tail 43.5-54. {Penthestes rufescens.) 



<i Parus cinctus Boddaert, Tabl. PI. Enl., 1783, 46 (based on Ln Mesange de Siberie 

 Daubenton, PI. Enl., pi. 708, fig. 3); Dresser Birds, Europe, iii, 1871, 112; Gadow, 

 Cat. Birds, Brit. ]\Ius., viii, 1883, 35, part; Poecila cineta Praziik, Orn. Jahrb., vi, 

 Heft 2, March-April, 1895, 87 (monogr. ). — [Parus] sibiricus Gmelin, Syst. Nat., i, 

 1788, 1013 (based on Siberian Titmouse Latham, Gen. Synop., ii, 556); [Poecila'] 

 sibiricus Bonaparte, Consp. Av., i, 1850, 230; P[oecife'] sibirica Caljanis, INIus. Hein., i, 

 1850, 91; Poecile sibirica vera Brehm, Naumannia, 1856, 369. — Parus l<(j)ponicus Lun- 

 dahl, Notis. Fauna et Flora Fenn. Forh. Helsingf., 1848, pt. i, 1, pi. 1, fig. 1. 



f> (?) Poecila sibmicrorhynchos Brehm, Naumannia, 1856, 369 (Siberia). — Parus 

 sibiricus (not of Gmelin) Radde, Reis. S. O. Sibir., ii, 1861, 198; Poecila sibirica 

 Taczanowski, Bull. Soc. Zoo!. France, i, 1876, 363. — Poecile cineta (not Parus cinctus 

 Boddaert) Swinhoe, Proc. Zool. Soc. Lond., 1871, 362 (near Pekin, north China); 

 David and Oustalet,Ois. Chine, 1877, 288. — Parus {Poecila) obtectus Cahams, Journ. 

 fiirOrn., xix. May, 1871, 237 (Lake Baikal, south Siberia); Poecilia obtecia Taczan- 

 owski, Journ. fiir Orn., 1872,443; P\_arus'] obtectus Gadow, Cat. Birds Brit. Mus., viii, 

 1883, 35, part (synonymy, under P. cinctus; exci. syn. Poecila affims Prjevalsky); 

 Poecila cineta obtecta Prazak, Orn. Jahrb., vi, Heft 2, March-April, 1895, 90 ( monogr. ).— 

 (?) Parus grisescens Hharpe and Dresser, Birdsof Europe, iii, 1871 [129], in text (south 

 shoresof Lake Baikal; coll. Sharpe and Dresser); Parus cinctus . . subsp. grisescens 

 Seebohm, Il)is, 1879, 2(Yenesai River, Siberia); Poecila cineta grisescens Prazak, 

 Orn. Jahrb., vi, Heft 2, March-April, 1895, 91 (monogr.) . — P[orMs] {Ploecile]). 

 cinctus obtectus Hellmayr, Tierreich, 18 Lief., March, 1903, 70, part. 



