310 TURBO. WREATH-SHELL. Class VI. 



with the T. nigricans in the contrary turn of the 

 spires, which are twelve in number, and of a 

 dusky hue. Tab. Ixxxiv. Jig. 5. 



On hollow and mossy trunks of trees. 



50. LAMINA- Lin. 7V. viii. 179. Mont. Test. Br. SSg. t. 11, 



TUS. 



/•4. 



* T. with a tapering, pellucid, smooth shell ; ten 

 volutions reversed ; aperture contiguous ; the 

 hind part with two teeth ; length three fourths 

 of an inch, breadth one eighth of an inch; 

 found on land. 



Wiltshire, Kent, and Dorsetshire. 



!l. BipLicA- Lin. Tr. viii. 186. Moyjt. Test. Br. 36l. t. 11. 



TUS. 



/. 5. 



* T. with a tapering shell, opaque, striated ; 

 volutions reversed ; aperture less contiguous, 

 and with two teeth on the hind part; length 

 three fourths of an inch, breadth one eighth of 

 an inch. 



Easton Gray, Wiltshire: it has also been 

 found in Hyde Park. 



