388 PLIOCENE MOLLUSCA. 



Dimensions. — L. 9 mm. B. 3 mm. 



Distribution. — Not known living. 



Fossil : Coralline Crag : Gedgrave. 



Remarks. — This shell might perhaps be regarded as a variety of R. Homesi. 

 It is one of several of the same kind, unnamed, at present in the Montagu-Smith 

 Collection at the Sedgwick Museum, Cambridge. 



Raphitoma Keepingi (Etheridge and Bell). Plate XXXIX, fig. 17. 



1898. Pleurotoma Keepingi, A. Bell, Trans. Roy. G-eol. Soc. Cornwall, vol. xii, p.138. 



Specific Characters. — Shell small, fusiform, turriculate ; spire long, about half 

 the total length ; whorls 7 — 8, convex, indistinctly carinate above ; ornamented by 

 9 or 10 strong, broad and straight costae, crossed by fine spiral ridges ; suture 

 deep ; mouth long and narrow ; canal short. 



Dimensions. — L. 10 mm. B. 3 mm. 



Distribution. — Not known living. 

 Fossil : St. Erth. 



Remarks. — The specimen figured under this name is the one found by 

 Mr. Keeping and named after him by Messrs. Etheridge and Bell. It is now 

 in the Sedgwick Museum at Cambridge and has been identified by the latter as 

 the one originally described by him. He considers that, though related to 

 R. Homesi, it may be regarded as a distinct species. 



Genus HAEDROPLEURA (continued from p. 255). 

 Haedropleura Cornishi (Etheridge and Bell). 



1898. Pleurotoma (Mangilia) Cornishi, A. Bell, Trans. Roy. Geol. Soc. Cornwall, vol. xii, p. 137, pi. i, 

 fig. 10. 



Specific Characters. — Shell minute, ovato-fusiform ; whorls (3 — 7, convex, 

 turreted, obtusely angulate above ; ornamented by a few rather distant but 

 stout, rounded and prominent longitudinal ribs, crossed by fine well-marked spiral 

 striae ; suture deep ; spire short, with a blunt apex ; mouth expanded above, 

 narrowing below ; canal very short, open. 



Dimensions. — L. 6 mm. B. 4 mm. 



Distribution. — Not known living. 

 Fossil : St. Erth. 



Remarks. — Mr. A. Bell informed me that this very distinct species was 



