Class VI. TURBO. WREATH-SHELL. 317 



Mont. Test. Br. Sup. 128. 74, disjunc- 



TUS. 



* T. shell slender, white, and smooth, umbi- 

 licated with six round volutions, separated by 

 a deep flat line ; aperture nearly orbicular j 

 length scarcely a quarter of an inch. 

 Tx- Scottish coast. 



Mont. Test. Br. Sup. 129. 75. iNDis- 



TINCTOS. 



* T. with a subcylindric glossy white shell, of 

 five or six Avell defined and finely striated flat- 

 tish volutions ; aperture subovate ; minute. 



Mont. Test. Br. Sup. I29. 76. insculp- 



TOS. 



* T. with a taper, subumbilicated, subpellucid 

 white shell, having five or six moderately con- 

 vex striated volutions ; apex obtuse ; aperture 

 subovate ; pillar lip furnished with a small 

 tooth ; length one eighth of an inch, breadth 

 one third of its leng-th. 

 Devonshire coast ; rare. 



