GASTEROPODA. 57 



Axis, I of an inch. 



Locality. Cor. Crag, Sutton. 



Red Crag, Sutton. Recent, Biitish Seas. 



This elegant Httle shell has about seven whorls, which are ornamented with a 

 dozen costse in the last volution ; these are crossed by sharp elevated lines, which run 

 along the volutions ; they are rather broader over the ribs, and very sharp between 

 them, and are from six to seven in number. The outer Hp is sharp, strengthened on 

 the exterior by a thickened obtuse varix or rib ; canal short, open, and slightly inflected. 

 It is by no means abundant in either the Red or CoraUine Crag formations. 



2. Clavatula Philberti. 3Iich. Tab. VII, fig. 5, 5 a. 



Pleukotoma Philberti. Michaud. Phil. En. Moll. Sic. torn, ii, p. 165, 1844. 



— VARIEGATUM. Phil. En. MoU. Sic. vol. i, p. 197, tab. 11, fig. 14, 1836. 



— — S. Wood. Catalogue 1842. 



CI. Testa turritd, fusiforvii ; anfractihus convexis, costis longitudinalihis lineisque 

 transversis elevatis, clathratis ; labro incrassato, intus dentato ; canali breviuscidd. 



Shell turreted and fusiform, with about six convex volutions, longitudinally costated, 

 and decussated by coarse, elevated, transverse striae ; outer lip thickened within and 

 dentated. 



Axis, I of an inch. 



Locality. Cor. Crag, Sutton. Recent, Mediterranean. 



I have one tolerably good specimen of this species, with a few imperfect ones, and 

 have very little doubt of the identification. The striae are sharp and elevated, like 

 those upon the preceding species, but coarser, making the costse rather tuberculate ; 

 the lip is thickened '^\ithin, somewhat contracting the aperture, and strongly dentated, 

 with seven or eight elevated teeth, and having a moderately sized sinus immediately 

 at the suture. The figure is scarcely elongated enough. 



3. Clavatula castanea (?). Brown. Tab. VII, fig. 3, 3 a. 



Fusus CASTANEUS. Brown. lUust. Brit. Conch, pi. 48, fig. 43-44, 1827. 



CI. Testa pusilld, ovato-fusiformi, anfractihus quatuor valde convexis, tumidis, prope 

 suturam depiressis ; longitudinaliier obtuse costafis, costis 11 — 12, transversim striatis, striis 

 ruffosis, confertis ; aperturd ovatd ; canali brevi. 



Shell small, ovato-fusiform, with four convex and tumid volutions ; depressed near 

 the suture, with 11 — 12 obtuse costse, numerously and coarsely striated transversely; 

 striae carried over the ribs ; aperture ovate ; canal short. 



Axis, 3 of an inch. 



Locality. Cor. Crag, Sutton. ? Recent, British Seas. 



I have but two specimens of this species, and these appear to resemble the figure 

 by Brown, referred to above. My specimens are thickly and rather coarsely striated, 



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