INDEX TO EOCENE BIVALVES. 
ANOMIA ephippium, Defr. 
levigata, Nyst . 
lineata, J. Sow. 
orbiculata, Nyst 
scabrosa, S. Wood 
striata, J. Sow. 
substriata, D’Orb. 
subglevigata, D’Orb. 
tenuistriata, Desh. 
Arca appendiculata, J. Sow. 
aviculina, Desh. 
Branderi, J. Sow. 
biangula, Lam. 
depressa, J. Sow. . 
Dulwichiensis, Edw. 
duplicata, J. Sow. 
deleta, Solander 
eximia, Ldw. 
elegans, 8. Wood . 
hyantula, Desh. 
globulosa, Desh. 
impolita, J. Sow. . 
interrupta, Lam. 
lactea, Solander 
leevigata, Caillat 
Lyelli, Desh. 
modioliformis, Desh. 
nitens, J. Sow. 
nucleus, Solander . 
pretenuis, Charlesworth 
planicosta, Desh. 
VOLE 
80 | 
ie) 
o 
ASTARTE 

oN BS OO © 
“So Ww WN OO 
| AVICULA 
ARCA sulcicosta, Nyst 
tegulata, Ldw. 
tessellata, Fisher 
tumescens, Ldw. 
| Websteri, Forbes . 
Clarendonensis, Edw. 
donacina, J. Sow. 
rugata, J. Sow. 
> var. umbonata 
as » filigera 
x » Subrugata 
tenera, J. Sow. : 
», var. Hampsteadiensis 
? modicella, S. Wood 
arcuata, J. Sow. 
media, J. Sow. 
papyracea, J. Sow. 
B. 
Byssoarca duplicata, J. Sow. 
| Carpira 
mmterrupta, J. Sow. 
C. 
acuticosta, Lam. 
alticostata, S. Wood 
Brongniartii, Mantell 
carinata, J. Sow. 
crebrisulcata, Ldw. 
corpusculum, S, Wood 
Davidsoni, Desh. 
deltoidea, J. Sow. 
elegans, Lam. . 
imbricata, Lam. 
