172 



POPULAR CONCHOLOGY. 



Vaginulus. Fer. (Veronicella Blain.) — No shell. 

 Incilaria. Benson. — No shell. 



Limax. Lin. (Phosphorax Webb.) — Shell internal, 

 and rudimentary ; form irregular, 

 nearly square, and having no - 

 spire, somewhat like a nail in 



1 a . 7 i i Til Limax maximus. 



shape. Animal long ; head toler- 

 ably distinct, having two pair of tentacula, the upper ones 

 furnished with eyes ; foot long and large. — Many species. 



These animals are common everywhere, but particularly 

 in the neighbourhood of ditches and damp gardens, where 

 they often cause great damage. They are usually known 

 by the name of slugs, of which there are eight species 

 found in England. 



PHTLOMYCUS. Rafinesque. — No shell. 



GrEOMALACUS. Allman. — No shell. 



Janella. Gray. — No shell. 



Parmacella. Cuvier. — Shell merely rudimentary, 

 shaped somewhat like a spoon, and defending 

 the organs of respiration; spire very short. 

 Animal, oblong, slug-like ; four tentacula, 

 two of which have eyes, and all are retrac- 

 tile; foot large. — 6 or 7 species. parmacciia 



From Mesopotamia and other warm coun- callculata - 

 tries. 



Testacella. Cuvier. — Shell very small, slightly ear- 

 shaped, and spiral at the apex ; mouth large, oval, having 



Testa a Ua hal iu toi<k s 



