EAPHITOMA WOODII. 265 



jRemarhs. — I dedicate this charming shell, which is new to the Crag and, as 

 far as I know, to science, to A. M. Garland, Esq., of Michaelstow Hall, near 

 Dovercourt, the owner of the Crag pit at Little Oakley, which has yielded a fauna 

 of snch extraordinary interest and variety, and has latterly attained a European 

 reputation. It is impossible for me to appreciate too highly his courtesy in 

 allowing me to continue my investigations there on such a wholesale scale and 

 during so many yeai's. 



Raphitoma valida, sp. nov. Plate XXX, figs. 22, 23. 



Specific Characters.— '^\\e\\ strong, subfusiform, much larger than JR. nehula or 

 its varieties ; whorls 7 or 8, nearly flat, the last about half the total length ; coarsely 

 ornamented by 5 or (3 longitudinal costee, slightly oblique, hardly reaching the 

 base of the shell; spire elongato-conical, regularly diminishing in size; suture 

 slight, oblique ; mouth oval, angulate above, ending in a very short canal ; outer 

 lip gently curved, not expanded. 



Dimensions. — L. 16 mm, B. 5 mm. 



Distribution. — Not known living. 



Fossil : Waltonian Crag : Walton-on-Naze, Beaumont, Little 

 Oakley. 



Remarks. — The present shell seems a distinct form which is specially charac- 

 terized by the small number of its coarse and irregularly sculptured longitudinal 

 costge. I have a dozen specimens or more of it from Oakley, and have found it 

 also at the two other localities of the Waltonian Crag, but not elsewhere. Its 

 affinities appear to be with the R. nehula group, but it is a much larger shell and 

 cannot be regarded, I think, as a variety of that species. It may perhaps be met 

 with at other horizons of the Red Crag if specially looked for ; it can hardly be 

 mistaken for anything else. 



Raphitoma Woodii, sp. nov. Plate XXX, fig. 5. 



Specific Characters. — Shell strong, subfusiform, elongate ; whorls 7, but little 

 convex, the last about half the total length ; ornamented by fifteen longitudinal 

 costae, not very prominent, which reach the suture and almost to the base of the 

 shell, also by numerous very fine but distinctly marked spiral ridges ; suture 

 slight ; spire regularly diminishing in size, ending in a blunt point ; mouth 

 narrow, oval, angulate above ; canal short, open. 



Dimensions. — L. 20 mm. B. 7 mm. 



Distribution. — Not known livine:. 



Fossil : Coralline Crag : Boy ton. 



84 



