110 ' . MEMORANDUM ON THE 



6thly. Two small specimens of a variety of Area. 



7thly. Several specimens of Ammonites in black limestone, some- 

 times filled inside with calcareous spar. There is but one species distin- 

 guishable, which appears to differ little, if at all, from one of the English 

 ones of Mr. Taylor ; but unfortunately I cannot refer to any book for the 

 specific name. 



8thly. Belemnites — the furrow appears to be rather more distinctly 

 marked than in the English ones. 



9thly. Orthoceratites, which do not appear to differ from the English 

 ones. 



lOthly. A cast of a Patelliform shell — but whether one of the real 

 Patellae, or the upper valve of one of those species of bivalves, which have 

 sometimes been confounded with them, we have no means of determining. 

 Its shape is conical, and somewhat obliquely curved. 



llthly. Two fragments of the back of a testudinous animal, also in 

 black limestone. 



We have, then, genera determined — of 



BIVALVES. 



UNIVALVES. 



Producta. 



Terebratula. 



Pecten. 



Modiola. 



Area. 



Ammonites. 



Orthoceratites. 



Belemnites. 



Total,.... 



Three Genera. 



Altogether, . . . 

 Undetermined, 



4 



5 



Total, 



9 



Testudinous remains of one kind. 



