XX XVI 



Sandvicensis, 173. 

 Scalaris, 2L9. 



Marhnce, 260. 

 Anna, 260. 



O. EULIMOIDES. Hanley in Zoological Proceedings, 

 1844. Oblong-turrited, pure white, semi-transparent, 

 polished, smooth ; whorls 5, moderately convex, the 

 last-formed equal in length to the spire ; suture dis- 

 tinct ; aperture oblong, the tooth-like plait in the centre 

 of the columellar lip ; outer lip but slightly convex at 

 the edge, rather effuse at the base, perfectly smooth 

 within: Length two lines, breadth not quite half as 

 much. Herm near Guernsey, 



O. RISSOIDES. Hanley Z. P. 1844. Oblong-coni- 

 cal, white, glossy, smooth ; whorls 5, moderately con- 

 vex, suture distinct, the last whorl equal in length to 

 the rest of the spire ; aperture occupying two fifths of 

 the length of the shell, ovate, the plait lying so far back 

 on the centre of the inner lip as not easily to be distin- 

 guished at first ; outer lip smooth within. Allied to 

 Eulimoides, but the mouth is far smaller ; breadth half 

 the length, which is two lines. Guernsey. Allied to 

 Fragilis of Michaud, but the whorls are fewer and the 

 outer lip quite acute. 



O. TURRITA. Hanley in Z. P. 1843. Turrited, 

 pure white, smooth glossy ; whorls 5, moderately con-. 



