262 



is still in existence in the interior of the island. They were 

 first thought to be Saurian eggs ; but Geoffroy St. Hilaire 

 has referred them to birds belonging to a genus called by 

 him, Epiornis ; accompanying bones also prove that ihey 

 belong to birds. 



Mr. Charles Girard, of Washington, said he had just 

 returned from the Upper Lakes of the Androscoggin, 

 where he had made some Ichthyological observations, a 

 part of which he would now communicate to the Society. 



He had often been told by anglers that the trouts of these 

 waters [Salmo erylJirogaster and S. fontmalis) are subject to 

 considerable variations, making it probable, in iheir opinion, that 

 there were more than two species. Visiting the locality he had 

 an opportunity of seeing and comparing large numbers of indi- 

 viduals. He satisfied himself that all the varieties spoken of are 

 mere varieties of color, all referable to either Sahno fontinalis 

 or S. erythrogaster. 



He was told, however, that about the 10th of October, another 

 trout, smaller in size than the common brook trout, and inhabit- 

 ing the deep water of Moosemegantic Lake, would make its 

 appearance near shore and ascend in large numbers the East- 

 ern inlet, called Kenebago. This actually took place, and the 

 trout, on examination, proving to be very different from Sahno 

 fontinalis and other species of Salmo, he regarded it as a new 

 species, and proposed for it the name of 



Salbio oquassa Girard. 



" It is from eight to ten inches in total length. The body is sub- 

 fusiform, slender, and the most graceful in the trout family. The 

 head is proportionally small, conical, coregonoid in shape. The 

 mouth is smaller than in S. fontinalis. Differences are likewise 

 observed in the structure of the opercular apparatus. The fins have 

 the same relative position as in the brook trout, but are proportion- 

 ally more developed, with the exception of the adipose, which is 

 considerably smaller ; their shape is alike, except that of the 

 caudal, the crescentic margin of which is undulated instead of 

 being rectilinear. The scales are somewhat larger, although 

 they present the same general appearance as those of the brook 



