Vol \w 



I'M.; 



Shui ii i"'. Contributions to Avian Paleontology. 30 



differing from the corresponding ones as they occur in the skeletons 

 of i he species of thepresenl day. 



Among the Anseres, I have to announce the discovery of Mergus 

 serrator and oilier fossil bones, which appear to have belonged to 

 specimens of Mergus americanus; also an undetermined form. 



bnong the Ducks, I find fossil bones more or fewer of (hem 

 representing, for the firsl time, Marila americana(T) M. valisineria; 

 M. marila (?); M. affinis (?);and M. collaris (?). Some of the 

 materia] belongs to fossil examples of Charitonetta albeola, His- 

 trionicus histrionicus, Polysticta stelleri and Erismatura jamaicensis. 

 This lasi duck had already been found by Mr. L. II. Miller of San 

 Francisco, and published by him in the Proceedings of the Cali- 

 fornia Academy of Sciences. 



Some o\' the hones point almost with certainty to the presence 



o\' Branta c. hutchinsi, Branta c. minima, and with absolute certainty 

 to Branta bernicla. 



Among the Swans, 1 find fossil remains of Olor columbianus, 

 Olor buccinator, and a very large species o{ a new and now extinct 

 Swan. 



Further, I find fossil remains of Botaurus lentiginoSUS and Ardea 

 herodias; and those of another heroil 1 have to still consider. 



It i^. however, a true Ardea and probably an extinct one. 

 Finally, 1 have to make the interesting announcement of having 



found fossil hones of two species o{ Eagles, both of which still occur 

 in our existing avifauna; these arc Aqnila chrysaStos and Halioeetus 

 leucocephalus. 



