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T. corrugatum, Lamk. Rare. 



T. succiuctum, Lamk. Not common. 



T. (Murex) cutaceum, L. Not common. 



XIX. Familia ALATA, Lamk. 



Genus Chenopus, Pliil. 



Ch. (strombus) pes pelecani, L. Maltese name Trkomi. 



Not common. 

 ? (rostellaria), Michaud ? A variety of the preceding ? 



Rostellarice fossiles. 



Casts of Rosteilaria are found in Bed No. 3, the clay. 

 (T. Wright.) 



XX. Fauilia PURPUPJFERA, Lamk. 



Genus Cassidaria, Lamk. 

 C. tyrrhena, L. 



Genus Cassis, Lamk. 



C. uudulata, L. Common everywhere. 

 C. sahuron, Lamk. Very rare. 



Cassides fossiles» 



Casts of Cassis are found in Bed No. 3, the clay. (T. 

 Wright). 



Genus Purpura, Lamk. 

 P. kemastoma, L. Common. 



