( 36 ) 
No. of 
Species 
Species found 
both living and 
fossil (tertiary). 
76 
baemastoma. 
6 
8 
7 
143 
95 
pomum r . . 
undatum . . 
reticulatum . 
maculosum . 
mutabile 
clatbratum . 
Neriteum 
Desnoyersi . 
prismaticum 
asperulum . 
musivum . . 
inflatum . . 
polygonum . 
D'Orbignii . 
Linnsei . . 
new species . 
politum . . 
new species . 
ditto . . . 
ditto . . . 
ditto". V . 
5 1 
Species found 
fossil in more than 
one tertiary 
formation. 
Habitations of 
living Species. 
new species 
new species 
serratum . 
baccatum 
new species, 
tessellatum . 
new species, 
semistriatum 
callosum . . . 
new species. 
Andrei . . 
new species. 
angulatum. . 
(new species, 
[ reticulatum affinis 
turritum .. . 
new species 
Medit., Senegal 
Indian Ocean . 
European Seas, 
Senegal 
ibid. ibid. . 
Mediterr. . . . 
ibid 
Indian Ocean . 
ibid. Medit. 
Senegal . . . 
Mediterr. . . . 
ibid 
ibid 
ibid. . . . . 
Unknown . . 
Mediterr. . . . 
ibid 
Indian Ocean 
ibid. . . . ., 
Unknown , . 
Mediterr.. . . 
ibid. . . . , 
Unknown . . 
PLIOCENE PERIOD. 
#? 
Various 
Localities. 
Morea . . . 
f Perpignaiij 
I Morea 
ibid. . . . 
Morea . . . 
Iscbia 
Perpignaiij 
Morea 
Perpignan 
Perpignan, 
Morea 
