112 DR JAMES COSMO MELVILL AND MR ROBERT STANDEN ON THE 



Family Cancellariidie. 

 Admete magellanica, Strebel. 



* „ limneieformis, Smith. 



* Par admete typica, Strebel. 



Order Opisthobranchiata. 



Sub-order tectibranchiata. 



Section BuUoidea. 



Family Tornatinidae. 



* Retusa antarctica, sp. n. 



,, truncatula (Brug.). 



Section Siphonarioidea. 

 Family Sijihonariida'. 

 Siphonaria redimiculwn, Reeve. 



Order Pulmonata. 

 Sub-order basommatophora. 

 Family Auriculidai. 

 Marinula nigra, Phil. 



Class SCAPHOPODA. 

 Dentalium eupatrides, M. and St. 

 ,, megathyris, Jousseaume. 



Class PELECYPODA. 

 Order Protobranchiata. 

 Family Nuculidie. 

 Nucula minuscula, Pfeffer. 



* ,, pisum, Sowb. 

 Yoldia eightsii (Couth. ). 



* „ profundorum, sp. n. 



Order Filibranchiata. 

 Sub- order anomiacea. 

 Family Anomiidw. 

 Anomia ephippium, Linn. 



Sub- order arcacea. 

 Family Arcidw. 

 Area {Bathyarca) strebeli, M. and St. 

 Lissarca notorcadensis, M. and St. 



,, ruhrofusca. Smith. 

 Limopsis longipilosa, Pelseneer. 



(ROY. SOC. EDIN. TRANS., VOL. XLVIII., 338.) 



