116 TURBO. WREATH-SHELL. Class VI. 



70. CARINA- Lin. Tr. viii. 186. 

 TULUS. 



* T. with a tapering, opaque, white ridged 

 shell, of seven volutions ; aperture narrow and 

 marginated; minute. 



Sandwich; rare. 



71. RivuLus. Lin. Tr. viii. 186. 



* T. with a striated shell, of four volutions, 

 opaque and white ; aperture marginated and 

 oval ; minute ; inhabits fresh water. 



Near Feversham ; very rare. ' 



72. SANDVi- Lin. Tr. viii. 187- 



CENSIS. 



* T. with a white pellucid shell, three reticu- 

 lated volutions, and one toothed aperture ; mi- 

 nute. 



73. MARGi- Mont. Test. Br. Sup. 12S. 



NATUS. 



* T. with a subcylindric white very strong 

 shell ; six or eight striated transversely ribbed 

 volutions ; aperture oval ; length three eighths 

 of an inch, breadth one fourth of its length. 



From Guernsey. 



