HELIX. 143 



dark grey tinged with yellow, upper pair nearly united at their 

 base, bulbs globular, short ; lower tentacles somewhat diverging ; 

 foot slender and rounded in front, broader and keeled behind, 

 margins whitish ; lingual ribbojt with 150 rows of 81 teeth 

 = 12,150. 



Shell compressed, somewhat solid, scarcely semitransparent 

 (opaque when the animal is within), of a dullish aspect, greyish 

 or yellowish horn-colour, with rufous-brown transverse markings, 

 finely and closely shagreened, and indistinctly striate in the line 

 of growth ; periphery strongly and acutely keeled ; epiderjnis 

 thickish ; whorls 5, sloping abruptly towards the periphery ; 

 spire very slightly produced, apex obtuse, smooth, slightly glossy ; 

 suture distinct but shallow ; mouth nearly oval, oblique, angu- 

 lated above and below, and indented at its juncture with the 

 keel ; outer lip whitish, moderately thick, considerably reflected 

 and forming with the inner lip, which is of the same colour, a 

 perfect peristome ; umbilicus large and deep. 



Inhabits many places in England, especially in 

 calcareous districts, on moist rocks and stone walls, as 

 well as in woods and hedgerows. It does not appear 

 to have been noticed in Ireland. In Scotland it has 

 been found in some abundance on " a lichen-covered, 

 dry, stone dyke near Hawick," by Mr. Grant Guthrie 

 (' Scottish Naturalist,' vol. ii.). It has recently been 

 discovered in Breconshire by Mr. V. Trump, who has 

 kindly sent me specimens ; to him, therefore, the credit 

 for having been the first to notice it in Wales, must be 

 accorded. Although this species is of most frequent 

 occurrence in calcareous districts, its range, in this 

 country at least, is not altogether confined to them ; it 

 has been found near Worcester (Reece), and at Linton 

 in North Devon (Captain Bruce Hutton), near to which 

 place I have seen it in great abundance on a stone 

 wall in a wood overhanging " the Lynn " ; the strata 

 in these localities are not of a calcareous nature. 



