260 HELICID^E. 



SHELL subcylindrical, thin and semitransparent, very glossy, 

 pale yellowish-horncolour, closely and rather strongly striate 

 in the line of growth : periphery rounded : epidermis thin : 

 whorls 4 J, convex, but slightly compressed : spire short, abrupt 

 and bluntly pointed : suture excessively deep : mouth semi- 

 oval and subangular, owing to the outward compression of the 

 periphery; teeth four, viz. one sharp and prominent tooth on 

 the middle of the pillar, one strong and also prominent and 

 thick tooth on the pillar lip, and two lamellae or plate-like 

 teeth which are placed at some little distance within the outer 

 lip, but not on any rib or callous fold as in V. pygmcea; the 

 labial teeth are visible on the outside, owing to the thinness 

 and transparency of the shell : outer lip rather thick, very 

 slightly reflected, not strengthened by any rib either outside 

 or inside ; outer edge abruptly inflected : inner lip somewhat 

 thickened in adult specimens : umbilicus small and narrow, 

 but rather deep. L. 0-07. B. 0'04. 



HABITAT : Under stones and among dead leaves near 

 Clithero in Lancashire (Gilbertson) ; Lipwood, near 

 Haydon Bridge, Northumberland ( J. Thompson) ; near 

 Ambleside, on slate (Miss Sarah Bolton) ; Grassmere 

 (J. G. J.). It is one of our most local species; and it 

 does not appear to be extensively distributed abroad. 

 Maack has recorded it as Russian ; Von Wallenberg 

 found it in Lulea-Lapland ; Charpentier and myself in 

 several parts of Switzerland ; and I have also taken it in 

 the Lower Harz. It is in Mr. Brown's list of Copford 

 shells ; but as a variety of V. pygmcea has been often 

 mistaken for this species, I cannot satisfactorily recognize 

 it as one of our upper tertiary fossils. 



In my notice of the Harz Mollusca in the ' Annals 

 and Magazine of Natural History' for November 1860 

 (p. 349) I stated that " this is a true Vertigo, and has 

 not the slightest vestige of the lower pair of tenta- 

 cles." The epiphragm is iridescent. The 'Malakozoo- 

 logische Blatter' for 1858 (Taf. 1. f. 5. a-d) contains an 

 admirable representation of the shell. 



