82 



Bulimus tuberculatus. Turton, ZooL Journ. i. p. 363. 

 t. 13. f. 4. 



Shell in size between the two last, and varying from 

 milk-white to brownish-white in colour ; but the 

 lower half of the larger volution is always milk- 

 white as well as the margin of the aperture : vo- 

 lutions six, flat but well defined. It is remarkable 

 for the tubercle on the pillar. 



Woods about Pershore in Worcestershire. 



65. BULIMUS lubricus. Shell cylindrico-oblong, 

 quite smooth, glossy and semitransparent : the 

 peritreme thick, without umbilicus. 



Bulimus lubricus. Drap. p. 75. t. 4./. 24. 



, Brard, p. 98. t. 3.f. 20. 



Zua lubrica. Leach, Mollusc, p. 114. 

 Helix lubrica. Mont. p. 390. t. 22. f. 6. 

 Helix subcylindrica. Dillwyn, p. 952. 

 Turbo glaber. Da Costa, p. 87. t. 5.f. 18. 



Shell hardly a quarter of an inch long, and a third 

 of its length broad, of a glossy brown or horn- 

 colour, with often a reddish tinge, quite smooth 

 and polished : spire composed of five or six 

 raised volutions : aperture narrow-oval, with the 



