130 BIRDS OF THE COMMANDER ISLANDS. 



Comjiarative measurements — Continued. 

 b. ARQUATELLA COUESI. 



Tail- 



I Middle 

 TTTj„„ , f^^t*. ' Exp. j Tar- toe 

 Wing, featb- culmen.' sua. with 



e'^s- , 1 claw. 



Average measnrements of 7 adult cf d" ; 1^^ 



Average measurements of 6 adult $ ? | 121 



26 24 



29 I 24 



27 



28 



42 (48). Actodromas acuminatus (Horsf.) 115. 

 Visits the islands on the fall migration (onlyf). 



43 (49). Actodromas damacensis (Horsf.) 116. 



Most of the Long-toed Stints visiting the islands only pass through 

 during the migration, but a few stay over the summer in Bering Island, 

 probably breeding. 



44 (50). Actodromas ruficollis (Pall.) 118. 



Visits the islands during the migrations only. 



45 (51). Actodromas temminckii (Leisl.) 119. 

 As the foregoing species. 



My conjecture (Orn. Expl. Kamtsch., p. 119 and p. 117) that Taczan- 

 owski's damacensis is referable to the present species, which at the time 

 was given out with considerable doubt, has received confirmation by 

 the fact that in their ''Liste des Oiseaux du Kamtschatka" ^Bull. Soc. 

 Zool. France, 1884) p. 2, Messrs. Dybowski and Taczanowski enumerate, 

 as occurring in Kamtschatka, Bering Island, and Copper Island, '^damac- 

 ensis Horsf.," ''salina Pall" { — ruJicoUis), and ''subminuta Midd." {dama. 

 censis vera), without mentioning A. temminckii, which it is quite improb- 

 able that Dr. Dybowski's collectors should have missed altogether, 

 while it is still more improbable that they should have got the true A, 

 minuta. 



46 (52). Pelidna alpina pacifica (,Coues) 120. 



An additional specimen of this species, which only visits the islands 

 during the migrations, has been received from Mr. Grebnitzki (U. S. 

 Xat. Mus. Xo. lOOGLl, Grebnitzki No. 201, S , Bering Island, October 

 25, 1884). 



47 (53). Calidris arenaria (Lin.) 122. 



Only during migration, and apparently very rare. Not obtained by 

 Dr. Dybowski's collectors neither on the islands nor in Kamtschatka. 



48 (54). Limosa lapponica baueri (Nalm.) 122. 



A regular visitor during the migratory seasons, a few individuals 

 staying over summer. 



