140 HELICID^. 



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. Jeifreys, 

 this animal feeds on the Jungermannia ■platyphylla. 

 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 

 lamellje ; whorls six, gradually increasing in 

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



Helix scarbursensis. Benri^ 3ISS., in Alder, Cat. 109., Tur- 

 ion, Man. 162., Miiller, Wirgm. Arch. N. 1838, 208. t. 4. 

 f, 4. ; Ros.s. Icon. viii. f. 37. — Helix holosericea. Miller, MSS. 

 — Helix lamelhita. Jeffreys, Linn. Tiuins. xvi. 333., not H. 

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

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

 Ross. Icon. 1". 533. 



Inhab. woods, north of England — Scarborough 

 {Bea7i), Newcastle {Alder). 



Animal pale grey. 



Shell the tenth of an inch in diameter, and as 

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



