98 MOLLUSCA FROM THE CRAG. 



3. Eulima glabella. S. Wood. Tab. XIX, fig. 2. 



Eulima glabella. S. Wood. Catalogue 1842. 



Eu. Testa subut 'aid, turritd, nitidissimd, politd ; apice obluso ; anfractibus 6 — 7 ,planu- 

 latis, contiguis ; suturis distinclis ; aperturd ovald, superne acuminata ; labro arcuato. 



Shell small, turreted, strong, naked, smooth, and glossy, with an obtuse apex ; 

 volutions 6 — 7, flattish ; suture distinct ; aperture ovate, acuminated at the upper 

 part ; outer hp rather obtuse and arcuated. 



Axis, -yq of an inch. 



Locality. Cor. Crag, Sutton. 



This is not a very rare species. It differs from E. sub ul at a in having a more 

 obtuse apex, a less elongated form, and in the curvature of the outer lip ; the 

 suture is better defined, and the whorls slightly convex. It may be known from 

 the young and smaller specimens of E. polita by a more subulate form, and by the 

 base of the body whorl not being angulated. It appears to be intermediate 

 between the two. At the upper part of the volution, just below the suture, the 

 shell is of a different tint, as if in its recent state it had been ornamented with a 

 coloured band similar to that of E. sub data, only in a different position. It may 

 possibly be the intermedia of Cantraine (Malac. Mediter. Mem. de l'Acad. Roy. de 

 Brux., t. 13), but that shell is described as having a spire " efnlee." Our figure 

 represents the apex as too much acuminated. 



Alvania,* Leach, MS. 1818. 

 Alvania. Risso, 1826. 

 Aclis. Loven, 1846. 



Gen. Char. Shell elongate, subulate, and turriculate, with an elevated spire, 

 and a papilliform and reversed apex ; volutions numerous, convex, covered with 

 elevated striae ; aperture ovate ; outer lip thickened (?), with a slightly reflected 

 inner lip, and a small umbilicus. 



A species of this genus in the British Museum had long passed under the MS. 

 name of Alvania, given to it by the late Dr. Leach (1818), and intended by him to 

 have been erected into a genus, which name was afterwards adopted by M. Risso, 

 1826, with the following characters : " Coq. conique, suture presque profonde ; 

 ouverture ovale, aigue a droite ; peretreme mince, parfait ; opercule cornee." 

 Although not very well defined, these characters are sufficient for the Crag shell it 

 is intended here to include, and as the name originally given by Dr. Leach was 

 attached to a specimen of Alvania glabella, the type of his genus, it is but right it 

 should be retained. 



* Etym. (?) 



