Class VI. TURBO. WREATH-SHELL. 293 



GENUS XXVII. TURBO. WREATH- 

 SHELL. 



Animal, a Slug. 

 Aperture round, entire. 



* Allied to the genus Nerita; the columnar 

 margin of the aperture even, imperforated. 



Lin. Tr. viii. 158. t. 4. /. 7- Mont. Test. Br. 586. id. 1. jugosus. 



Sup. t. 20. /. 2. 



* T. a somewhat ovate ventricose shell ; with 

 four ridged volutions; diameter three eighths 

 of an inch. 



Isle of PurbecJc, and in Cornwall. 



Lin. Syst. 1232. No. 607. Lin. Tr. viii. 158. t. 4.f. S, 2. LITTO* 

 Gm. Lin. 3588. 9, 10, 11. R . EU . S, 7 , 



List. Angl. tab. 111. Jig. 9. Mont. Test. Br. 301. 

 Faun. Suec. No. 2169. 



T. with five spires, the first ventricose, in 

 younger subjects striated spirally; in the old 

 smooth, and of a dusky color. Tab. lxxxiv. 



