Bulimus tuberculatus. Turton, Zool. Journ. i. j). SQiS. 

 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 luhricus. Shell cylindrico-oblong, 

 quite smooth, glossy and semitransparent : the 

 peritreme thick, without umbihcus. 



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



Brurd, p. 98. t. 3./. 20. 



Zua lubrica. Leach^ Mollusc, p. 114, 

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

 Helix subcylindrica. Dillwy?!, 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 



