Fig. 
8. 
10. 
13. 
5: 
Pleurotoma Waterkeynii. No. 200, p. 275. 
a. Front view, nat. size; from Potter’s Bar. 
6. Back view, ditto. 
c. Part of the body-whorl, magnified. 
. Pleurotoma callifera. No. 215, p. 291. 
a. Front view, magnified ; from Highcliff. 
4. Side view, ditto. 
Pleurotoma callifera, var. monilifera. No. 215, p. 291. 
a. Back view, nat. size; from Barton. 
6. Front view, ditto. 
. Pleurotoma callifera, var. raphium. No. 215, p. 291. 
a. Back view, magnified; from Highcliff. 
6. Side view, ditto. 
. Pleurotoma fasciolata. No. 212, p. 286. 
a. Back view, shell of mid-growth, nat. size ; from Highgate. 
4. Front view, adult shell, ditto; from Railway Cutting, at 
Kilburn. . 
Pleurotoma teniolata. No. 210, p. 284. 
a. Back view, nat. size; from Cuffell (Aus. Prestw.) 
6. Front view, ditto. 
c. Part of the body-whorl, ditto. 
. Pleurotoma abnormis. No. 218, p. 294. 
a. Back view, nat. size; from Highgate. 
6. Front view, ditto. 
Pleurotoma Volgeri. No. 199, p. 275. 
a. Back view, nat. size; from Potter’s Bar. 
4. Ditto, magnified. 
