Class VI. 



HELIX. SNAIL. 



339 



***** Ovated, imperforated. 



Lin. Syst. 124g. No. 703. 



Gm. Lin. 3657. 

 List. Angl. tab. ii. Jig. 21. 

 Conch, tab. 123. Jig. 21. 



Faun. Suec. No. 2188. 

 Lin. Tr. viii. 214. 

 Mont. Test. Br. 367- t. 16. 

 /.8. 



He. with six spires; the first very large and 

 ventricose, and the last quite pointed. Very 

 brittle. Length two inches one eighth. 



Inhabits still waters ; is, with others of the 

 kind, the food of trouts. Tab. lxxxix. Jig. 1. 



57. STAG- 

 NALIS. 



lake. 



Gm. Lin. 3658. 



Mont. Test. Br. 369. t. \Q. 



58. FRAGI 



Lin. Tr. viii. 215. 



f>l- 



LIS. 



* He. with round, pellucid, imperforate, ovato- 

 subulate shell ; aperture ovate oblong. 

 Found in fresh waters. 



