﻿Fig. 



9. Pleurotoma bracheia. No. 184, jo. 263. 



a. Side view, magnified ; from Barton. 



b. Ditto, ditto. 



10. Pleurotoma vicina. No. 188, jo. 266. 



a. Side view, magnified; from Alum Bay (Strat. No. 29, Prestw.) 



b. Front view, ditto. 



1 1 . Pleurotoma undata. No. 1 83, p. 261. 



a. Back view, nat. size ; from Stubbington. 



b. Front view, ditto. 



12. Pleurotoma sindonata. No. 185,/). 263. 



a. Side view, magnified ; from Stubbington. 



b. Front view, ditto. 



13. Pleurotoma subula. No. 190, p. 267. 



a. Back view, nat. size ; from Basingstoke. 



b. Ditto, magnified. 



14. Pleurotoma aspera. No. 197, p. 273. 



a. Back view, nat. size ; from Barton. 



b. Side view, ditto ; from HighclifF. 



15. Pleurotoma Koninckii. No. 204, p. 279. 



a. Front view, nat. size ; from Railway Tunnel, Hampstead. 



b. Back view, ditto. 



1 6 . Pleurotoma Wetberellii. No. 21 1 , p. 285. 



a and d. Back views of young shells, nat. size ; from Highgate. 



b. Back view of adult shell, ditto ; {Mus. Weth.) 



c. Front view of ditto. 



17. Pleurotoma Selysii. No. 203, p. 278. 



a. Front view of shell of mid-growth, nat. size ; from Muswell Hill 



{Mus. Weth.) 



b. Side view ditto, ditto. 



c. Back view of adult shell, nat. size (Mus, Weth.) 



d. Ditto of shell of mid-growth, ditto (ditto). 



