70 
23. 
24. 
26. 
28. 
29. 
30. 
Sle 
32. 
CATALOGUE OF SHELLS. 
P. Saccharina. 
Torres Straits. Philippines. 
P. Mamillata. Dr. Tonnere 
California. 
A smooth var in which the ridges are obsolete. 
P. Ustulata. 
These shells seem to belong to a var of the above species though 
they do not agree very closely with either Reeve’s figure or 
description. 
P. Ceerulea L. H, E, Strickland. 
(Not P. cerulea Lam.) 
P, Granularis. 
Cape. 
P. Cretacea. (?) Mr. Strange. 
Australia, Tahiti. 
P. Tramoserica, K. L. Layard. 
Australia. 
P. Oculus. 
Cape. 
Pe: Mr. Stisinge. 
Australia. 
ye ——— 
Gen. ACMA, Escuscno.rz. 
A. Testudinalis, Huseley. Mr. Malherbe. 
Scotland. 
