Mytilus crenatus . 
polymorphus 
N. 
Nassa abbreviata . 
arcularia . . 
clathrata 2. 
neritea . 
papillosa 
Thersites . 
Natica canrena 
cepacea . 
mimalley 5 5 5 6 
Nautilus Pompilius . 
Nerita chlorostoma . 
crenulata 
ornata 
peloronta 
tricarinata . 
Neritopsis cancellata 
granosa . . 
granulata 
Nodosaria Berthelotiana 
carinata . 
striati-collis 
Webbiana 
Nucula costellata 
crenifera 
cuneata . . 
curvirostra . 
eburnea . 
Elenensis .. . 
elongata . 
fabula 
gibbosa. . . . 
lanceolata 
Mauritiana . 
to bo bt 8 bt bo bo 
bo bt bo bt bo 
INDEX TO THE SPECIES. 
(SF (SS) es} 
Ne} 
SS) © 
So Woe DMPO We DH We HNO OW Rh HD 
Nucula nasuta 
Nicobarica . 
parva 
pella . 
polita . 
striata 
O. 
Octomeris angulosa . 
Oliva clavula . . 
maura) 
porphyria 
subulata . 
Oniscia cancellata 
cithara 
Dennisoni 
oniscus 
strombiformis . 
tuberculosa . 
Orbicula levis 
Norvegica 
. 
Orbiculina depressa . 
numismalis . 
universa . 
Ostrea carinata 
crista-galli 
edulis 
folium 
virginica 
Otion Cuvierii 
Ovula birostris 
gibbosa . 
verrucosa 
volva . 
Paludina achatina 
126 
to bw Ww bw bv 
antTwurns oo 
Tito ud 
_ 
SPNHNoreP Ra SF wre w 
os 
or bo 
is) 
ot 
° 
Bagw wre woe ew w 
to 
re 
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