no DR JAMES COSMO MELVILL AND MR ROBERT STANDEN ON THE 



Lacuna divaricata, Fabricius. 

 ,, notorcadensis, M. and St. 



* ,, ivandelensis, E. Lamy. 



Family Rissoidae. 

 Rissoa adarensis, Smith. 



,, (Cingula) cingillus (Mont.). 



* ,, deserta, Smith. 



,, edgariana, M. and St. 



* ,, [Onoha) Jilostria, sp. n. 

 ,, fraudadenta, Smith. 



* ,, (Onoba) fuegoensis, Strebel. 

 ,, parva (Da Costa). 



* ,, i^Onoha) paucilirata, ?,^. -a. 

 J, „ scotiana, M. and St. 



* „ ,, sulcata, StrebeL 



* ,, [Ceratia) turqueti, E. Lamy. 



,, {AIa7izo7iia) zetlandica (Mont.). 

 Eatoniella htrguelenensis, Smith. 



Family Litiopidse. 

 Litiopa melanostoma, Rang. 



Family Cerithiidse. 

 Cerithium georgianum, PfefFer. 

 „ pullum, Phil. 



* Bittium brucei, sp. n. 



* „ hurdwoodianum, sp. n. 



* Cerithiopsis macroura, sp. n. 



„ malvinarum (Strebel, MS.), M. and St 



Family Turritellidse. 



* Turritella algida, sp. u. 



* Mathilda rhigomaches, sp. n. 



Family Tritoniidse. 

 Gyrineum vexillum (Sowb.). 



Section (c) Gymnoglossa. 

 Family Eidimidiv,. 



* Eidinia antarctica, Strebel. 



Family PyramideUidai. 



* Turhoyiilla smithii, Pfeiler. 



* „ xenophyes, sp. u. 



(ROY. SOC. EDIN. TRANS., VOL. XLVIII., :536.) 



