140 
HELIGID^. 
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, i 
exhibiting the appearance of a circle of bristles j 
round the middle of each ; aperture somewhat orbi- j 
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 platyphylla. 
It has a very extended range ; for it is found in the j 
north of Sweden. 
i 
! 
58. 25. Helix lamellata. Scarborough Snail. — | 
Shell somewhat trochiform, grey; the perios- 
traca rising into close-set equal longitudinal j 
lamellaB ; whorls six, gradually increasing in 
size ; mouth lunate ; umbilicus deep. (t. 5. f. 48.) 
Helix scarburgensis. Bean^ MSS.^ in Alder^ Cat 109., Tur- j 
ton^ Man. 162., MiMer., Wipgm. Arch. N. 1838, 208. t. 4. j 
f. 4. ; Ross. Icon. viii. f. 37. — Helix holosericea. MilleryMSS. 
— 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 
Newcastle {Alder). 
Animal pale grey. 
Shell the tenth of an inch in diameter, and as 
much high, grey or pale horn-colour, semitransparent. 
