140 HELICID.E. 



Inhab. woods, under leaves and stones. 



Animal greenish ; tentacles long. 



Shell about the tenth of an inch wide, and as 

 much high, thin, semitransparent, brown horn-colour; 

 the volutions rounded and deeply separated, clothed 

 with a thin periostraca, which rises into numerous 

 regular rather oblique foliations shooting into points, 

 exhibiting the appearance of a circle of bristles 

 round the middle of each ; aperture somewhat orbi- 

 cular, as long as wide, with a white rib on the inside ; 

 umbilicus moderately large and deep. 



According to the observations of Mr. Jeffreys, 

 this animal feeds on the Jungermannia platypkylla. 

 It has a very extended range ; for it is found in the 

 north of Sweden. 



58. 25. HELIX lamellata. Scarborough Snail. 

 Shell somewhat trochiform, grey; the perios- 

 traca rising into close-set equal longitudinal 

 lamellae; whorls six, gradually increasing in 

 size ; mouth lunate ; umbilicus deep. (t. 5. f. 48.) 



Helix scarburgensis. Bean, MSS., in Alder, Cat. 109., Tur- 

 ton, Man. 162., Miltter, Wicgm. Arch. N. 1838, 208. t. 4. 

 f.4.; Ross. Icon. viii. f. 37. Helix holosericea. Miller, MSS. 

 Helix lamellata. Jeffreys, Linn. Trans, xvi. 333., not H. 

 lamellosa, Ferussac ; Pfeiff. Mon. Hel. i. 51.; Forbes and 

 Hanley, B. M. iv. 73. t. 117. f. 8, 9. Helix Seminulum. 

 Ross. Icon. f. 533. 



Inhab. woods, north of England Scarborough 

 (Bean), Newcastle (Alder). 



Animal pale grey. 



Shell the tenth of an inch in diameter, and as 

 much high, grey or pale horn-colour, semitransparent, 



