PELECYPODA. 



Familles and Gênera 



No. of specles and varieties col- 

 lected by the "Slboga" Expédition 



No. of new specles and varieties 



Order PROTOBRANCHIA. 

 Family NUCULIDAE. 



Nucula Lamarck . . . 

 Family Nuculanidae. 



Subfamily NUCULANINAE. 

 Nuculana Link . . . 



Yoldia Môller .... 

 Subfamily Malletiinae 



Malletia Desmoulins 



Neilonella Dali .... 

 Order FILIBRANCHIA. 



Family Anomiidae. 



Anomia Linn 



Placenta Retzius . . . 

 Family Arcidae. 



Arca Lamarck .... 



Cucullaea Lamarck . . 



Limopsis Sassi .... 



Glycymeris Da Costa . 

 Family Mytilidae. 



Brachidontes Swainson 



Modiolus Lamarck . . 



Musculus Roding . . . 



Lithophaga Roding . . 



Solamen Iredale . . . 

 Family ISOGNOMONIIDAE. 



Isognomon Solander . 

 Family VULSELLIDAE. 



Vulsella Roding . . . 

 Family Pteriidae. 



Pteria Scopoli . . , . 



Pinctada Roding . . . 



Malleus Lamarck . . . 

 Family Pectinidae. 



Subfamily SpondyLINAE. 



Spondylus Linn. . . . 

 Subfamily PliCATULINAE. 



Plicatula Lamarck . . 

 Family Dimyidae. 



Dimya Rouault . . . 

 Order EULAMELLIBRANCHIA. 

 Family LiMiDAE. 



Lima Cuvier 



II 



13 



I 

 I 



31 

 I 



5 

 7 



4 

 S 

 3 

 4 

 I 



10 

 6 



5 



II 



(Thls includes a new name suggested 

 for the preoccupied N. (N.) acummata 

 (Sowerby). 



II 



