46 CATALOGUE OF SHELLS. 
2. S. Communis H. E. Strickland. 
Britain. 
3. S. ‘Turtonis Sow. 
Britain. 
Closely allied to the last but more acuminate. 
4. S. Australis Lam. 
Swan River. 
Fam. LitToRinipz. 
Gen. Litrorina FERUSSAC. 
1. L. Neritoidea. Messrs. H. E. Strickland and Mitchell. 
Britain, 
2. L. Pallida Say. 
Essex Co. Mass. 
38. L. Littorea. 
a. Montrose. Mr. Mitchell. 
b. . Britain. H. E. Strickland. 
/: aie OP Muricata. Von de Busch. 
Antilles 
5. L. Levis (?) Mr. Strange. 
Australia. 
6. L. Rudis Dr. Tonnere. 
a. 
b. Britain. H. E. Strickland. 
7. L. Arboricola var. Mr. Lietard. 
a. Mauritius 
b. Keeled var. 
c. Navigator's Islands. “Dr. Tonnere. 
