CRUISE OF THE STEAMER CORWIN. 101 



uutil its discovery in youug ami iavediag- plumagu on ilall"s Island. It is not improliable that 

 the snowfiakes of this island and the large adjoining island of St. Matthew's are all hyperhoreus, 

 snowflakes having been seen on tlie latter in alnuidance by Mr. Elliott. Mr. Ridgway suggests 

 (The Auk, April, ISSO) tliat the snowflakes of St. Lawrence Island, more than a hundred miles to 

 the northward, may be of this species, hiit that all those as yet known from the Pribyloffs, two 

 hundred miles to the southward, are true P. nivalis. Less than a dcjzen sjjecimens of P. hyper- 

 boreit.s have ever been taken. The plate representing this l)ird was drawn from the tyije speci- 

 mens in spring plumage. In summer plumage it may readily be distinguished from the ordi- 

 nary snowflake by its general whiteness, having no black except on the tips of the qiiills, while 

 nivalis is consijicuous by its black l)ack and more extensively blackened primaries. P. nivalis 

 has also the three middle pairs of tail-feathers black to the base, liyperboreits having them lint 

 slightly black near the ends. The females of h yperboreus are paler and less marked with black 

 than tho.se of nivalis. 



Calcarius lapponicus (Linn.). Lapland Longspue. 



These birds, which were plentiful in June, were rare in August. 

 Two specimens; Port Clarence, June ',38. 



Ammodramus sandwricheiisis {Ginel.}. S.\ndwich Sparrow. 



One siiecinit'ii; ( )unalaska, ()ctol)er l(i. The only one seen. 



Melospiza cinerea (&mel.). Aleutian Song Sparrow. 



Very abundant about Ounalashka Island. I saw several Aleutian song sparrows caged, 

 and in every instance they were confiding and familiar when taken from the cage and given the 

 liberty of the house. The song in confinement is a low whistle, sweet and plaintive. 



Twelve specimens; Ounalaska, October 19-21. 



Passerella iliaca {Men:}. Fox Sparrow. 



I saw several fox sparrows in bi'ushy places near the hills at Port Clarence, but they were 

 wild and kept in the cover so closely that it was cjuite impossible to shoot them. 



Cinclus mexicaaus Sirahis. American Dipper. 



The only dipper I saw in Alaska was one I shot on the border of the lake behind the village 

 at Ounalaska, October 1(5. 



Troglodytes alascensis Baird. Alaskan Wren. 



Fiv'e specimens; Ounalaska, October 10. Abiandant. 



Phyllopseustes borealis (Bias.). Kennicott's Willow Warbler. 



I shot my second specimen of this vara avis at Port Clarence on August 30, but lost it 

 while returning to the ship. The other specimen was taken on the Kowak River August 1. 

 The species is a straggler from the Asiatic side of the Straits. 



Turdus aliciae Baird. Gray-cheeked Thrush. 



This bird was seen on three or four occasions at Port Clarence and Schismareff Inlet late 

 ill August. 



One specimen; Port Clarence, August 30. 



FISHES. 



Ammodytes amerlcanus personatus Girard. Sand Launce. 



One specimen; Port Clarence, August 31. The only one seen. 



Cottus humilis Bean. 



A single specimen of this species was brought aboard the Corwiii at Cape Prince of Wales 

 June 30. 



