276 Zoological Proceedings of Societies. 



purposed to frame a classification and nomenclature of the Testa- 

 ceous Mollusca, quite independent of the shells they inhabit, but 

 had found such arrangement impracticable, from various causes; 

 among which was that of Mollusca, of the same features and struc- 

 ture, inhabiting very different shells. Besides, he remarks, the 

 study of Conchology will always be pursued, by persons who are 

 not interested in the comparative anatomy of the animals inhabit- 

 ing the shells. He then proceeds to describe, from actual re- 

 search, the characters of Univalves, and of their animals ; giving 

 first the general and then the particular conformation of each 

 organ, and enumerating the Genera and Species to which they 

 respectively belong, principally according to the Liunean system. 

 He thus describes the various peculiarities of the mantle, — with 

 its relations to the colour and form of the shell, — of the operculum, 

 of the foot, and other parts ; including under the latter, the 

 structure of the various organs it contains. Mr. Collier concludes 

 his paper with some observations on the different parts of shells, 

 as affording means of classification, and on the natural and artifi- 

 cial arrangements of them ; proposing a new system founded on 

 the characters of the shells and of the animals in conjunction ; 

 and suggesting the designation of the families by Latin names of 

 one termination. The parts he employs as characteristic are the 

 cavity, lip, columella, rostrum, spire, and some others. 



JuneS. — A paper was read On the Generation of Fishes; by 

 J. L. Prevost, M.D. 



June 17. — Sir E. Home communicated a paper On the Organs 

 of Generation of the Axolotl^ and of other Protei : and the Society 

 adjourned, over the long vacation, to meet again on Thursday, 

 November 18. 



E1NNEAN SOCIETY. 



Feb. 3 (continued). — A notice by John Hogg, Esq. B.A. of 

 Norton, Durham, was also read, stating that a fine specimen of 

 Falco chrysaeloS) or Golden Eagle, was lately shot near the 

 mouth of the Tees ; being the fifth known to have been killed in 

 England. 



