MARINE MOLLUSCA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 91 



Section (b) Tsenioglossa. 



Family Naticid&. 

 Natica (Lunatia), sp. 



Family Capulidse. 



Calyptrsea costellata, Phil. 

 Crepidida dilatata, Lamk. 



Family Littorinidie. 



Littorina (Lsevilitorina) caliginosa (Gould). 



,, ,, coriacea, sp. n. 



,, (Pellilitorina) pellita, v. Marts. 



,, ,, setosa (Smith). 



Lacuna divaricata, Fabr. 

 ,, notorcadensis, sp. n. 



Family Rissoidas. 



Rissoa adarensis, Smith. 



,, (Oingula) cingillus (Mont.). 



edgariana, sp. n. 



,, fraudulenta, Smith. 



,, parva (Da Costa). 



,, (Onobci) scotiana, sp. n. 



,, (Manzonia) zetlandica (Mont.). 

 Eatoniella kerguelensis, Smith. 



Family Litiopidse. 

 Litiopa melanostoma, Rang. 



Family Cerithidse. 



Cerithium georgianum, Pfefter. 



,, pullum, Phil. 

 Cerithiopsis malvinarum (Strebel, MS.), sp. n. 



Family Tritonidse. 

 Gyrineum vexillum (Sow.). 



Section (c) Gymnoglossa. 

 Nil. 



(ROY. soc. EDIN. TRANS., VOL. XLVI., 121.) 



