162 HELICID^E. 



cylindrical, thin, nearly transparent, very glossy, light yellowish 

 horn-colour, with numerous close-set, well-defined striae in the 

 line of growth ; periphery rounded ; epidermis thin ; whorls 

 4y, more swollen than in V. pygmaa; suture very deep ; mouth 

 semi-oval, less oblique than in the last species, with a sharp 

 tooth on the centre of the base of the penultimate whorl, another 

 strong and thick one on the pillar, and two fold-like teeth on 

 the inside of the outer lip ; outer lip somewhat thick, scarcely 

 reflected, unprovided with a rib ; inner lip rather thick ; um- 

 bilicus moderately deep, but narrow. 



Inhabits some of the northern counties of England, 

 under stones, at the roots of grass, and among leaves, 

 but it is a very local species. The following localities 

 have been given for it : Clitheroe, Lancashire (Gilbert- 

 son), Lipwood near Haydon Bridge, Northumberland 

 (J. Thompson), near Ambleside (Miss Sarah Bolton), 

 and Grassmere (J. G. J.), B.C. It is also said to have 

 been found at " Over Gloucester, and among moss on 

 the canal banks at Sharpness (Mr. J. Jones)," Tate's 

 ' Land and Freshwater Molluscs of Great Britain.' 



It was described by Forbes and Hanley as a variety 

 (alpestris) of V. pygmaa, but it differs from that species 

 in its more cylindrical form and stronger striation, as 

 well as in the aperture being unprovided with a rib, 

 and there is not the slightest trace of rudimentary 

 lower tentacles. 



5. V. SUBSTRIA'TA,* JEFFREYS. PL. IX. 



" Body grey of different shades ; snout short, bilobed ; tenta- 

 cles slender, cylindrical, or club-shaped and divergent, bulbs 

 equal to about one-fourth of their length ; foot of a lighter 

 colour, thick, short, narrow, and keeled at the tail." B.C., vol. i. 

 p. 261. 



* Somewhat striated. 



