MARINE MOLLUSC A OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 113 



Sub-order mytilacea. 

 Family Mytilidie. 

 Mytilus edulis, Linn. 



,, magellanicus, Chemnitz. 

 ,, ovalis, Lamarck. 

 Philohrya meridionalis (Smith). 

 ,, qtiadrata (Pfefter). 



* ,, sublawis, Pelseneer. 



,, wandelensis, E. Lamy. 



* Crenella decussata (Mont.). 

 Modiolarca mesemhrina, M. and St. 



Order Pseudolamellibranchiata. 



Family Pectenida'. 

 Pecten colbecki, Smith. 



,, rmdticolor, M. and St. 



? patagonicus, King. 

 ,, p^erio^rt, M. and St. 

 Amussium IS-liratum, M. and St. 



Family Limidw. 

 Lima goughensis, M. and St. 



{Limatula) pygmwa, Philippi. 



Order Eqlamellibranchiata. 

 Sub-order submytilacea. 



Family Carditidie. 



* Cardita congelascens, sp. n. 



* „ pallida, Smith, var. 1^-costata nov. 



Family Astartidai. 



* Astarte magellauica, Smith. 



Family Lucinidie. 



* Di2:)lodonta lamellata, Smith. 

 Cryptodon falklandicus, Smith. 

 Cyamium antarcticum, Philippi. 



* ,, denticulatum, Smith. 



,, falklandicum, M. and St. 



Family Erycinids'. 

 Lasiea consanguinea (Smith). 

 Kellyia cycladiformis, Desh. 



(ROY. SOC. EDIN. TRANS., VOL. SLVIII., 339.) 



