ZONITES. 159 



they are said even to attack the larger snails and to enter 

 their shells for that purpose. They frequent dark and 

 damp places, being generally met with under stones, old 

 bricks, and logs of wood which are partly buried in the 

 earth, as well as under and among dead leaves and moss 

 in woods ; and one kind inhabits cellars, vaults, and wells. 

 Some of them give out when touched or disturbed a fetid 

 smell like that of garlic, which may be perceived at a 

 considerable distance. Their eggs are laid in the earth 

 and joined together in small clusters. 



A. Spire depressed : umbilicus open. 

 1. ZONITES CELLA'RIUS*, Miiller. 



Helix cellaria, Mull. Verm. Hist. pt. ii. p. 38. Z. cellaring, F. & H. 

 iv. p. 33, pi. cxx. f. 1-3, and (animal) pi. H. H. H. f. 3. 



BODY obtusely rounded in front and narrowing gradually 

 behind, nearly covered with small and rounded but very 

 flat tubercles, rather transparent, slate-colour or bluish-grey, 

 with a faint tinge of yellow : tentacles long and slender, 

 with very large bulbs surmounting the upper pair, bluish 

 or yellowish-grey, finely speckled with black : foot very 

 narrow, pointed and somewhat keeled behind. 



SHELL compressed, nearly as convex above as below, 

 thin and brittle, very glossy, semitransparent, yellowish or 

 brownish-horncolour above, and whitish with often a greenish 

 tinge underneath, irregularly striate by the curved lines of 

 growth, which are stronger near the suture and micro- 

 scopically striate, like Vitrina, in a spiral direction : epi- 

 dermis rather thick : whorls 5-6, dilated, regularly increas- 

 ing in size, the last occupying about one-half of the shell : 

 spire extremely short and nearly flat, almost central : suture 

 slight, forming a narrow groove or channel : mouth obliquely 

 and deeply semilunar : outer lip slightly reflected : umbilicus 

 broad and deep, exposing nearly all the interior of the spire. 

 L. 0-2. B. 0-5. 



Var. \.complanata. Shell rather smaller : spire very flat. 

 * Frequenting cellars. 



