584 CHARADRIIDA 



many of which are also margined with sandy huff or whitish ; there 

 is also a distinct tinge of sandy buff on the fore-neck and chest. 



Although it seems impossible to tell the winter plumage of 

 A. couesi from that of A. maritima, yet the summer plumage of the 

 two races appears to me to be quite distinguishable. The brighter 

 rufous colour, the greater amount of white on the inner primaries, 

 and the rufous colour of the young are certainly characters of some 

 importance in A. couesi. 



"The downy young, from Kyska Island, June 30, 1873, is bright 

 rusty fulvous, irregularly marked with black ; the oruamental 

 velvety flecks coarser, and not so white as in A. maritima ; head 

 light fulvous, marked as in A. maritima- sides of lower parts 

 fulvous. 



" The downy young both of this species and of A. ptilocnemis are 

 strikingly different from the young of A. maritima. The difference 

 lies in the rich, light buffy, or fulvous tints which so richly colour 

 the two first, in contrast with the dark, dingy buffs and greys 

 forming the main colours on young A. maritima at the same stage." 

 (E. W. Nelson.) 



Hah. Iteplaces A. maritima in Western North America, where it 

 inhabits Alaska, as well as the Commander Islands * and the 

 Kuriles. ? Eastern Siberia. 



a-q. 6 2 a d- et St. Michael's, Alaska, Aug., Salvin-Godman Coll. 

 juv. sk. Sept. (E. W. Nelson : Hen- 



shaw Coll.). 

 r. Juv. sk. St. Michael's, Oct. 15 (L. M. Salvin-Godman Coll. 



Turner : Henshaw Coll.). 

 s. Juv. sk. Alaska (E. W. Nelson). Seebohm Coll. 



t, u, v. 2 a< i- s k- Port Etolin, Alaska, April 10 Salvin-Godman Coll. 



(C. L. McKay : Henshaw 



Coll.) t. 

 w. $ ad.sk. Port Etolin, April 10 (C. L. Seebohm Coll. 



McKay), 

 x. $ ad. sk. Unalashka,Oct.l3(7 , .77.i?e«M). Seebohm Coll. 



y. Ad. sk. Unalashka, Oct. (L. M. Turner : Salvin-Godman Coll. 



Henshaw Coll.). 

 z. Ad. sk. Atkha Id., Alaska (L. M. Salvin-Godman Coll. 



Turner: Henshaw Coll.). 

 a'. Ad. sk. Atkha Isl. (i. M. Turner). Seebohm Coll. 



b', c'. Ad. sk. Kurile Islands (Snow). Seebohm Coll. 



d'. $ ad. sk. Kurile Islands (Vosnesensky). Seebohm Coll. 



Subsp. /3. Arquatella ptilocnemis. 



Tringa ptilocnemis, Coues in Elliott's Rep. Fur-Seal Island, Alaska, 

 not paged, note (1873) ; id. B. N- West, p. 491 (1874) ; id. 

 Amer. Nat. viii. p. 500 (1874) ; Elliott, Monoc/r. Seal Isl. Alaska, 



* Dr. Stejneger records a large series of specimens obtained by himself on 

 Bering Island. The only skin that I have seen from this locality is one in the 

 Seebohm collection, and it seems to me to beloDg to A. ptilocnemis. 



t These specimens are rather larger, and may be A. ptilocnemis in winter 

 plumage. 



