NATURAL SCIENCES OF PHILADELPHIA. 328 



116. Bucephala Americana, (Bonaparte.) 



"San Francisco, California, December, 1855." (Mr. Stimpson.) 



117. Histrionicus torquatus, (Brandt.) 

 From California. 



118. Polysticta Stelleri, (Pallas.) 



"Semiavine Straits, August, 1855." (Mr. Stimpson.) 



119. Erismatora rubida, (Wilson.) 



"San Francisco, California, January, 1856." (Mr. Stimpson.) 



120. Melanetta velvetina, (Cassin.) 



" San Francisco, California, November, 1855." (Mr. Stimpson.) 



121. Pelionetta perspicillata, (Linnaeus.) 



" San Francisco, California, November, 1855." (Mr. Stimpson.) 



122. Somateria molissima, (Linnseus.) 



" Semiavine Straits, August, 1855." (Mr. Stimpson.) 



123. Somateria spectabilis, (Linnaeus.) 

 "Behring's Straits, August, 1855." (Mr. Stimpson.) 



124. Bernicla leucopareia, (Brandt.) 



" San Francisco, California, January, 1856." (Mr. Stimpson.) 



125. Colymbus septentrionalis, Linnaeus. 



" San Francisco, California, November, 1855." (Mr. Stimpson.) 



126. Podiceps gornutus, (Grmelin.) 

 "California, November, 1855." (Mr. Stimpson.) 



127. Podilymbus carolinensis, (Latham.) 



" San Francisco, California, November, 1855." (Mr. Stimpson.) 



12S. Uria grylle, (Linnaeus.) 



From Herald Island, Arctic Ocean. 



Very interesting on account of locality, which is north of Behring's Straits, 

 though known as inhabiting the coasts of northern Asia. Exactly identical 

 with the bird of northern Europe and north-eastern America. 



"Herald Island, August, 1855." (Mr. Stimpson.) 



129. Uria columba, (Pallas.) 



From Behring's Straits. Numerous specimens of this species, now well 

 known as inhabiting the Pacific coast of America from the present locality to 

 San Francisco. In general form and color resembles the preceding, but is 

 easily distinguished by the white space on the wing being partially divided 

 by a black band, or, as expressed by Pallas, "fascia alarum duplex alba.'''' 



"Abundant in the edge of the water at the harbor of Glassnappe in the 

 island of Arikamcheche or Kayne Island, which is on the Asiatic side of Behr- 

 ing's Straits, lat. 64 40' N., long. 172 59' W., and along the shores of the 

 Straits of Semiavine which separate this island from the continent of Asia." 



' ' This bird was always observed swimming close to the shore, apparently 

 in search of food, and though seen in considerable numbers, was always iso- 

 lated and scattered along the coast. It is quite shy and timid, and on the 

 slightest alarm escaped by diving with great expertness and quickness, and 

 swimming under the water quite a considerable distance. It was not heard 

 to utter any note, but quite silently and very industriously appeared to be 

 constantly engaged in its search for subsistence." (Mr. E. M. Kern.). 



"Behring's Straits, August, 1855." (Mr. Stimpson). 



130. Ukia carbo, (Pallas). 



From the coast of Japan. From a new locality and a more southern lati- 

 tude than usual for this interesting species. 



1862.] 



