PLATE XCIII. 



HELIX TENTACULATA.' 



KERNEL, OR OLIVE WATER SNAIL. 

 GENERIC CHARACTER. 



Aperture of the mouth contracted and lunulated* 



■ 



SPECIFIC CHARACTER 



AND 



i 



SYNONYMS. 



Shell without umbilicus, sub-conic, five spires. Aperture rather 

 oval. 



Helix tentaculata : testa imperforata ovata obtusa impura, aper- 

 ture subovata. Linn. Syst. Nat. p. 1249, 

 n. 707. 



Cochlea parva pellucida, operculo testaceo cochleatoque clausa. List. 

 H. Conch, tab. 132. fig. 32. 



Cochleola oblonga fluviatilis, common small river snail. Petiv. Gaz. 

 tab. 18. fig. 8. — Small fresh water turbo 

 with five wreaths. Wallis Northumb. p. 370. 



Turbo imperforatus parvus subrufus, laevis, quinque spirarum. Nu- 

 cleus. Da Costa. Br. Conch, p. 91. sp. 50. 



