884 TURBO. 



SERPULOIDES. 163. Shell minute, depressed, with 

 three smooth whirls, and umbilicated be- 

 neath. 



Helix serpuloides. Montagu Supp. p. 147. t. 21. f. 3. 



Inhabits the Devonshire coast, and is extremely rare. Mon- 

 tagu. 



Montagu says this shell is about the size of T. depressus, but is 

 white, and differs in the slight connexion of the whirls, and 

 their more cylindrical appearance underneath. 



