18 



inch in breadth. Thus it is the largest species occurring on our 

 coast north of Florida. It is very solid, and covered with a 

 thick greenish epidermis. The appearance of the shell indicates 

 the genus Scaphander^ which is confirmed by an examination of 

 the animal. But I agree with Mr. Clark, (An. and Mag. Nat. 

 Hist. 2d Ser. VI.) in thinking the genus unnecessary. 



There frequently occurs in the stomachs of Haddock a small 

 saucer-shaped corneo-calcareous body, rounded, with a slight 

 emargination on one side. This is a large plate of the gizzard 

 of this Bulla, which is preserved when the shell and animal has 

 been destroyed. It is about one eighth of an inch in diameter. 



Bulla pertenuis Migh. This, with the exception of B. tri- 

 ticea is our most abundant species. It usually occurs in very 

 deep water, but I have dredged specimens in six feet of sand off 

 Point Shirley. It has been regarded as the young of B. Gouldii^ 

 and I have seen it in most cabinets marked " B. dehilis^ Gould," 

 which is a very different shell. 



Bulla canaliculata Gould. This species occurs in three 

 fathoms, near Bird Island, in Boston Harbor, where it was first 

 found by Prof. Agassiz. From an examination of these speci- 

 mens, I am induced to believe the B. ohstricta, Gould, to be 

 identical with this species. The calcareous or corneous gizzard 

 is very large and complicated in this species. It is desirable 

 that this organ should be examined in our other species, by those 

 who may meet with them alive. 



Mr. Bouve read a report on Dr. Mantell's Monograph, 

 on Belemnite and Belemnoteuthis, which had been com- 

 mitted to him, giving an analysis of its contents. 



Prof. Wyman presented a paper on a new genus of 

 American Colloids, by Mr. Charles Girard. 



There has been a prevailing opinion among the fishermen at 

 Oswego that the Ling {Lota maculosa) swallows its progeny, a 

 thing not uncommon in the class of Fishes. Nevertheless, Prof. 

 Baird, in visiting last summer that locality, was anxious to 

 ascertain, by direct observations, how far this opinion is correct. 

 He opened many of these 'fishes and found in the stomach of 



