1. lAGOPTjg. 



51 



J/, z. c? 5 ad. sk. 



a'. Piill. sk. 



b'. (S ad. sk. 



c'. c? ad. sk. 

 d'. cf ad. sk. 



c'. cJ ad. St. 



f-h'. S ad. et 2 



imm. sk. et st. 

 i'. 2 ad. sk. 

 /, k'. cT ? ad. sk. 

 r. 2 ad. .sk. 

 »»'. (5" imm. sk. 



n'-p'. (S 2 ad. sk. 



q'. 2 ad. sk. 



r', s'. c? ad. sk, 



v. 2 ad. sk. 



«', u'. c? imm. sk. 



«j'. J imm. sk. 

 a:'. Sternum and 

 shoulder-ffirdle. 



Hare Ravine, N. Greenland, 

 lat. 82° 32', May, June, 

 (if. TF. Feilden). 



Ritenbenk, N. Greenland, 

 July {H. W. F.). 



Discovery Bay, winter. 



Nortliumberland Sound, Oct. 

 Port Bowen, Cockburu Is., 



winter. 

 Arctic America, winter. 



Arctic America, summer and 



winter. 

 Arctic America, summer. 

 Hudson's Bay, winter. 

 Canada, Jan. ( W.H.Collins). 

 Fort Resolution, Jan. (J. 



Lockhart). 

 N.W. America, winter and 



summer. 

 Galsova R., Alaska, Feb. 



{E. W. Nelson). 

 Kegiktowik, Alaska, Mar., 



Oct. {E. W. Nelson). 

 Nulato, Youkon H., Alaska, 



Jan. ( W. H. Ball). 

 Kotzebue Sound. 



[Falkland Is.] 



'Alert ' Arctic Exped. 



'Alert' Ai'Ctic Exped. 



Lords of the Treasury 



[P.]. 

 Gould Coll. 

 Dr. Neill [P.]. 



Admiral Sir G. Back 



[P.]. 

 Dr. J. Rae [P.]. 



Gould CoU. 

 Gould Coll. 

 Salvin-Godman Coll. 

 Salvin-Godman Coll. 



Capt. Collinson [P.], 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Capt.Kellett&Lieut. 



Wood [P.]. 

 G. Bennett [P.]. 



Dr. J. Rae [P.\ 



5. Lagopus hyperboreus. 



Tetrao lagopus, Ross, App. Parn/s Narrative, p. 193 (1828). 

 Lagopus alpina, var. hyperborea, Simdev. in Gaim. Voy. Scandin., 



AH. livr. xxxviii. pi. (1838). 

 Lagopus hemileucurus, Gould, P. Z. S. 1858, p. 354 [Spitzbergen] ; 



Evans ^- Star ye, llm, IS-VJ, p. 170 ; Neiot. P. Z. S. 18l34, p. 4fM3 ; 



id. Ibis, 1865, p. 502 ; Grai/, List Gallince Brit. Mus. p. 9:5 (1867) ; 



id. Iland-l. B. ii. p. 278 (1870) ; Dress. B. Eur. v. p. 179, pi. 482 



(1871); Olphe-Gall. Faun. Orn. Eur. Occ. fasc. 37-40, p. 01 



(1886). 

 Tetrao alpina, Torell, Bidr. Spitsber;/. p. 51 (18o9). 

 Lagopus hyperborea, Mabw/ren, CEfv. Konyl. Vet.-Ak. Fork. 1863, 



p. 100 ; Stejn. Zeit. t/es. Orn. 18S4, p. 80. 

 Lagopus hyperboreus, Elliot, Mon. Tdr. pi. xxiv. (1865). 

 Lagopus riipestris?, Neiot. Ibis, 1805, p. 504, 1871, p. 249. 

 Lagopus rupestris, var. hj'perborea, Sundev. CEfv. Sv. Ak. Fork. 1874, 



pp. 18, 20 [Spitzbergen]. 



This species differs from L, mutus and L. rupestris in the amount 

 of white on the basal part of the tail, which is always considerably 

 more than in the latter ; the second pair of tail-feathers have the 

 basal two-thirds white, and this colour gradually decreasing on the 



