﻿TAB. XXIX. 



Note. — The lines indicate the actual dimensions of the specimens. 



Fig. 



1. Pleurotoma constricta. No. 178, p. 256. 



a. Side view, natural size ; from Barton. 



b. Ditto of body- whorl, magnified. 



c. Front view, nat. size. 



2. Pleurotoma scabriuscula. No. 176, p. 254. 



a. Back view, magnified ; from Highcliff. 



b. Side view, ditto. 



c. Ditto, ditto. 



3. Pleurotoma verticillum. No. 1 77, p. 255. 



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



b. Ditto of body- whorl, and part of the spire, magnified. 



c. Front view, nat. size. 



4 Pleurotoma turgidula. No. 172, p. 251. 



a. Back view, nat. size ; from Alum Bay (Strat. No. 29, Prestw. ?) 



b. Side view, ditto. 



c. Ditto of the body- whorl, magnified. 



5 Pleurotoma tereticosta. No. 171, p. 250. 



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



b. Ditto, magnified. 



c. Ditto, (var. soror), nat. size ; from Southampton. 



d. Ditto, (ditto) magnified. 



6. Pleurotoma brevirostrum. No. 180, jo. 258. 



a. Back view, nat. size ; from Muddiford ? (Mus. Sow.) 



b. Front view, ditto. 



7. Pleurotoma nodulosa. No. 1 81, p. 260. 



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



b. Front view, ditto. 



c. Side view, magnified. 



8. Pleurotoma nodosaria. No. 182, p. 261. 



a. Back view, magnified ; from Southampton. 



b. Front view, ditto. 



