Introduction 
Bibliography 
Description of species 
Nuculana 
Nucula ... 
Anomia ,. 
Arca 
Barbatia 
Grammatodon 
Trigonoarca 
Cucullea 
Tsoarca 
Pectunculus 
Limopsis 
Trigonia 
Mytilus ... 
Modiola 
Crenella 
Lithodomus 
Septifer 
Dreissensia 
Myoconcha 
Spondylus 
Plicatula 
Pecten (Syneyclonema) 
,, (Camptonectes) 
(Chlamys) 
» (Aiquipecten) 
»  (Neithea) 
Velopecten 
Hinnites 
Additions and corrections ... 
Index 
CONTENTS. 
PAGE 
