98 



Pupilla Drapernaudii. Leach, Mollusc, p. 126. 

 Turbo Muscorum. Mont. p. SS5. t. 22./. 3. 

 Turbo cylindraceus. Da Costa, p. 89. t. 5.f. 16. 



b. with the tooth obscure or obhterated. 



Shell two lines long, dark horn-colour, glossy and 

 semitransparent : spire composed of six rounded 

 volutions finely striate longitudinally : aperture 

 roundish-oval, with a broad, flat glossy white 

 margin, and a single tooth whicli is parallel with 

 the margin and close to the outer lip, appearing 

 like a curved continuation of the margin itself: 

 pillar with a large deep perforation behind it. 



This does not appear to be the Turbo Muscorum of 

 Linne, who describes it as having no tooth in the 

 aperture, " apertura edentula " : and no where 

 mentions the remarkable broad white margin. 



Under stones, and in old walls. 



79. Pupa marginata. With a single minute interior 

 central tooth, and a strong white external rib behind 

 the outer lip. 



b. with the tooth obliterated. 



Pupa marginata. Drap. p. 61. t. Z.f. SQ — 38. 

 — „ Brard,p. 92. t. 3./. 15, 16. 



