A BRIEF REVIEW OE THE LAGOPODES. 89 



2. Lagopus ridgwayi Stejneger. 

 (Plate V.) 



1883. — Lagopüs albus Stejneger, Pr. U. S. Nat. Mus. 1883 p. 72 (nee 



Gmel) (cfr. «The Auk» 1884 p. 82). 



1884. — Lagopus ridgwayi Stejneger, Pr. Biol. Soc. Washingt. II p. 98. 

 A well circumseribed form, characterized by its blackish prepectus 



in preästival plumage, its saturated f'errugineous-brown color, the lack of 

 whitish or grayish edgings to the feathers, and the blackish color of 

 abdomen and tibia in the postastival plumage. Bill proportionally larger 

 than in tbe allied forms. 



At present only known as an inhabitant of the Commander Group 

 of the Alcutian Islands, and is most likely only an isolated insular species 

 not at all oecuring on the neighbouring Kamtschatka. 



The figure represents a male in perfect postastival plumage, Nr. 

 89062 U. S. Nat. Mus., collected by nie at Lissenkovaja, Bering Island, 

 August 23, 1882, one of the types of the species, and is the result of Mr. 

 J. L. Ridarway's skill. I am indebted to the authorities of the National Mu- 

 seum for permission of having it published in connection with the pre- 

 sent paper. 



3. Lagopus hyperborea (Sundw.) Malmgeen. 



1827. — Tetrao lagopus Ross, in Parry, Att. read. Northpole (p. 193) 



(nee Lin). 

 1843. — Lagopus alpinus var. hyperborea Sundev., in Gaimard, Voy. Sean- 



din, livr. 18 pl. 

 1858. — Lagopus hcmileuciirus Gould, P. Z. S, 1858 p. 354. 

 1863. — Lagopus hyperborea Malmgr., Ofr. Sv. Vel. Ac. Hand. 186:; |>. 

 1874. — Lagopus rupestris var. hyperborea Sundev, Ofr. Sv. Vet. Acad. 



Handl. 1874, n. 3. p. 19. 

 The Spetsbergen Ptarmigan may be regarded as a distinet specii is 

 on aecount of its superior size, and the distinetness of the color of its 

 surnmer-plumage, together with the large amount of white on the t.iil- 

 feathers. It also seems as it only assumes one summer-pluin.ige. 

 Only known from Spetsbergen. 



