Fig. 
9. Pleurotoma pupa. No. 175, p. 253. 
10. 
13. 
14. 
We 
a. Side view, magnified ; from Highcliff. 
6. Ditto of body-whorl, magnified. 
c. Front view, magnified. 
Pleurotoma lepta. No. 164, . 244. 
a. Side view, magnified ; from Stubbington. 
6. Ditto of body-whorl, magnified. 
c. Back view, magnified. 
. Pleurotoma plicata. No. 169, p. 248. 
a. Front view, nat. size; from Bramshaw. 
6. Ditto — of body-whorl, and part of the spire, magnified. 
c. Back view, nat. size. 
. Pleurotoma coarctata. No. 165, p. 245. 
a. Back view, magnified ; from Highcliff. 
6. Front view, ditto. 
c. Side view of body-whorl, magnified. 
Pleurotoma gomphoidea. No. 168, p. 247. 
a. Back view, nat. size; from Highcliff. 
6. Front view, ditto. 
G: Ditto — of body-whorl, and part of the spire, magnified. 
d. Back view, nat: size; from Clarendon. 
e. Ditto of body-whorl, magnified. 
ji. Front view (var. avita), nat. size; from Southampton. 
72. Ditto (ditto) magnified. 
Pleurotoma acuticosta. No. 170, p. 249. 
a. Back view, nat. size; from Barton. 
6. Front view, ditto. 
c. Ditto of body-whorl, and part of the spire, magnified. 
. Pleurotoma dilinum. No. 173, p. 252. 
ai. Front view, magnified ; from Alum Bay (Strat. No. 29, Prestw.) 
a2. Side view, magnified. 
6. Ditto of body-whorl, magnified. 
. Pleurotoma pyrgota.. No. 179, p. 257. 
a. Back view, nat. size; from Bramshaw. 
6. Front view, ditto. 
c. Ditto of body-whorl, and part of the spire, magnified. 
Pleurotoma Headonensis. No. 187, p. 265. 
a. Back view, magnified ; from Headon Hill. _ 
b. — Ditto of body-whorl, and part of the spire, magnified. 
c. Front view, magnified. 
