454 GEOLOGY OF THE ENVIRONS OF NICE.—APPENDIX. 
All the shells described in the following catalogue, are si- 
milar to those, though not in so high a state of preservation, 
which were found so abundantly some years ago at Grignon 
in France, and which abound in various parts of that country, 
as well as in Italy. For the most part, they are exceedingly. 
minute, many of them requiring the power of a solar micro- 
scope to determine their characters with precision. 
The whole number enumerated amounts to two hundred 
and twenty-five; of these, thirty-three species, which Captain 
Brown considers new, he has particularly described and figu- 
red. He has also described two new madrepores. Among 
them are some odd valves of a new Chiton, a genus not even 
noticed by Broccut, in his Conchologia Fossile Subapennina : 
likewise several of the Haliotis striata ; a genus also unknown, 
‘or at least not included in’the work above quoted; so that all 
the Linnean Genera have been found in this neighbourhood 
except the Argonauta. 
For the sake of brevity, Captain Brown has confined his re- 
ferences to the latest authority for description, and the best 
for the figure of the shell. 
Together with the engravings of these fossil remains, I have 
given a small Map of the Environs of Nice. This is principal- 
ly taken from a manuscript map in the possession of Mr Ris- 
so, in some degree corrected and verified by the rough obser- 
vations I was able to make with one of ScumMaxcaLpEr’s milita- 
ry compasses, an instrument of sufficient accuracy for the pur- 
poses I required. It will be satisfactory to the reader to ob- 
serve the bearings of the different localities ; and the colouring 
of the map will enable him to distinguish the extent of the 
different formations and deposites I have had occasion to de- 
scribe. 
