XXXV 11 



part is fometimes rough, and granulated with cryflal- 

 Jikc, fhining angles. 



This fhell is the Lapis limacis orSnail-ftoneof autliors, 

 and is faid to have been ufed for medical purpofes : ac- 

 cording to popular opinion, it cures the tertian ague, if 

 faftened to the patient's arm.* 



Fa V ANNE has figured feveral fpecies of Limax in his 

 Zoomorphofe, tab. 76, that appear to be the intermedi- 

 ate link between fuch as poflefs an internal fliell, and 

 thofe with teftaceous covering ; thefe have only a fmall 

 fliell attached to the poflerior end. But as no fuch have 

 been difcovered in England, we only mention it to fliew 

 the nice gradations in nature's work ; and how utterly 

 impoflible it is to divide that chain, which flie has fo ad- 

 mirably linked together. 



* Encyclopsedia Britannica. 



