64 



a. quite smooth and glossy. 



Helix pulchella. Drap. ^i. 112. t. 7./. SS, 34. 



Brard, p. 5Q. t. 2,/. 9. 



Helix paludosa. Mont. p. 204. 



■ Lhm. Trans, viii.^j. 193. t. 5. f. 5. 



Turbo paludosus. Turt. Diet. p. 228. 

 Znrama pulchella. Leach, Mollusc, p. 108. 



b. with regular oblique raised transverse striae. 



Helix pulchella. Drap. p. 112. t. l.f. 30—32. 

 Helix crenella. Mont. p. 441. t. 13./. 3. 



Shell the tenth of an inch in diameter : aperture 

 nearly circular, being very little interrupted by the 

 penultimate volution, the peritreme margined and 

 flat : umbilicus large and deep. 



Whether these two varieties may not be considered 

 as distinct species, may still be doubted. In all 

 the dry hills around us, under heaps of stones we 

 find the first variety in abundance, but have never 

 been able to discover one with the epidermis or 

 transverse ridges. On the contrary, in marshy 

 places we as constantly find the second variety 

 with its striae and epidermis, and never without 

 them. At all events these circumstances will 

 destroy the specific character adopted by Dr. 

 Leach, "epidermide in lineas oblique transversas 

 elevatas digesta." And we may further observe, 



