CATALOGUE OF SHELLS. 53 
6. N. Dubia Chemnitz. E. L, Layard. 
Ceylon. Bay of Manilla, 
7. N. Humeralis, B. W. Theobald, Junr. 
Salween, R. 
8. N. Aquatilis. Mr. Lietard. 
Mauritius. 
The locality of the shell figured by Reeve was unknown. 
9. N. Longis pina. Recluz. 
N. Corona apud Chemnitz and Lamarck 
a. Soc. Cab. 
b. Mauritius. Rodriguez. Mr. Lietard. 
10. N. Spinosa. Dr. Tonnere. 
Navigators Islands, Tahiti. 
11. N. Zebra. Lam. Dr. Tonnere. 
Navigator’s Islands. 
12. N. Navigatoria, Reeve. Dr. Tonnere. 
Navigator's Islands. 
13. N. Tritonensis Le Guillon. Dr. Tonnere. 
Navigator's Islands. North Australia. 
14. N. Canalis Sowerby. Dr. Tonnere. 
Navigator’s Islands 
15. N. Bicanaliculata, Recluz. E. L. Layard. 
Ceylon. 
16. N. Faba Sowerby. EK. L. Layard. 
Ceylon. 
Reeve does not give the locality of the specimen figured by him. 
