HELIX. 177 



3. H. poma'tia*^ Linne. 



H. poTiiatia, Linn. Syst. Nat. ed. xii. p. 1244 ; F. &II. iv. p. 46, pi. cxvi. f. 2. 



Body obtusely round^ in front and narrowing behind to a 

 rather fine point, yellowish-grey, with sometimes a brownish 

 tinge, covered all over with large oval tubercles or granulations, 

 which are of a yellow colour with greyish interstices : man tie 

 furnished on its upper part with three fleshy and prominent 

 lobes : tentacles very long and nearly cylindrical ; terminal 

 bulbs on the upper pair small and globular: foot large and 

 broad, rounded in front and obtusely pointed behind. 



Shell globular, thick and strong, opaque, of rather a dull 

 aspect, yellowish -white, with spiral bands of brown, which lat- 

 ter colour is more or less diffused over the surface ; these bands 

 are four or five in number on the last or body whorl, and are 

 sometimes confluent, and there are generally two or three (but 

 occasionally only one) on the penultimate whorl ; the surface is 

 also marked by numerous but irregular lines of growth and very 

 fine spiral or longituchnal striae : epidermis rather thick : whorls 

 4| or 5, extremely convex, the last occupying about two-thirds 

 of the sheU : spire short and ending in a rather blunt point : 

 suture not very deep, but distinct : mouth nearly round, slightly 

 contracted and angulated above by the projection of the pen- 

 ultimate whorl : outer lip thick, reflected over the umbilicus, 

 margined inside with reddish -brown : inner lip spread over 

 the columella and scarcely distinguishable : umbilicus narrow 

 and small. L. 1-75. B. 1-75. 



Yar. alhicla. SheU whitish or colourless. 



Habitat: Woods^ hedgebanks^ and uncultivated places 

 in Surrey, Hertford, Kent, Oxon, Wilts, and Gloucester- 

 sliii-e. The variety has been found by Mr. Brewer near 

 Reigate. There was at one time a popular notion that 

 it had been introduced into this country by the Romans, 

 because it is found near several ancient encampments ; 

 but there does not appear to be any other foundation 

 for this idea. The H. pomatia has not been found at 

 Wroxeter or York, or in many other parts of England 



* Operculated. 



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