TAB. XVII. 



Fig. 



1. Cypreea Bowerbankii. No. 72, p. 129. 



a. Back view, shell from Highgate. 



b. Front view of the same. 



c. Back view, shell from Bracklesham Bay, 



d. Front view, ditto. 



2. Cyprsea Prestwichii. No. 78, p. 134. 



a. Back view, natural size. 



b. Back view of the same, magnified. 



c. Front view of the same, ditto. 



3. Ovular antiqua. No. 79, p. 136. 



a. Back view, natural size. 



b. Back view of posterior extremity, magnified. 



4. Cyprsea Wetherellii. No. 77, ^. 133. 



a. Front view, natural size. 



b. Back view of the same, magnified. 



c. Front view of the same, ditto. 



5. Cyprsea tuberculosa, (Var. Coombii). No. 75, p. 131 



Back view. 



G. Cyprsea Bartonensis. No. 74, p. 130. 



a. Back view. 



b. Front view. 



7. Cypraea platy stoma. No. 76, p. 132. 



a. Back view of young shell, natural size. 



b. Back view of the same, magnified. 



c. Front view of the same, ditto. 



d. Back view of adult shell, natural size. 



e. Back view of the same, magnified. 

 f. Front view of the same, ditto. 



