4: Latraria tellinoides, Lam.
5: I have also seen M. hians of Philippi in a Ceylon collection.
6: M. Taprobanensis, Index Test. Suppl.
7: Psammotella Skinneri, Reeve.
8: P. cærulescens, Lam.
9: Sanguinolaria rugosa, Lam.
10: T. striatula of Lamarck is also supposed to be indigenous to Ceylon.
11: T. rostrata, Lam.
12: L. divaricata is found, also, in mixed Ceylon collections.
13: C. dispar of Chemnitz is occasionally found in Ceylon collections.