206 ZOOLOGY. 



Oracidus brasilianns, (G-M.) Gay, Fauna Chilena, Aves, 490. 

 VuLG. Brazilian Cormorant. Teco. 

 This Wrd appears to be common on the entire western coast of South American. A mature 

 male, from a specimen in the collection of the Expedition, is represented in our plate. 



PHALACEOCORAX GAIMARDI, (Garnot.) 



Pelecanus Gaimardi, Garnot, Voy. Coquille, Zool. I, 1826, 601. 



Graculus Gaimardi, (Garn.) Gay, Fauna Chilena, Aves, 489. 



VuLG. Gaimard's Cormorant. Lite. 



Figure. — Voy. Coquille, Zool. PL xlviii. 

 This handsome species, the light cinereous of the plumage of which is an agreeable variation 

 from the sombre colors that prevail in this group, is apparently of frequent occurrence on the 

 Pacific coast of ISouth America and its islands. Specimens of both sexes are in the collection 

 of the Expedition, of which that labelled the female is slightly the larger. In color and other 

 characters they are similar. 



PELECANUS THAGUS, Molina. 



Pelecanus thagus, Molina, Sagg. Stor. Nat Chili, 1782, quarto ed. 1810, 199. 



Gay, Fauna Chilena, Aves, 494. 

 Pelecanus Molina^, Gray. Gen. Ill, 1845, 668. 

 VuLG. Alcatraz. 

 This interesting species is represented in the present collection by a single specimen only, 

 which is unfortunately not in adult plumage. It is, however, readily to be recognised by the 

 description in the quarto edition of Molina above cited. 



It is probable that this bird will be found inhabiting the shores of the Pacific, as far north 

 as the possessions of the United States ; other known sj^ecies being rather remarkable for their 

 extensive dissemination over wide extents of territory. We know nothing of the habits of this 

 bird. 



