90 



BRITISH MOLLUSKS. 



Bulimus acutus is found abundantly on our south-western downs 

 attached to blades of grass, as represented in our vignette, and it is 

 supposed to share largely with Helix virgata and ericetorum in the 

 honour of fattening our famous Southdown mutton. 



2. Bulimus montanus. Mountain Bulimus. 



Shell ; conically cylindrical, minutely compressly umbilicated, dark 



olive-horny, whorls seven, obliquely pli- 



cately striated, minutely shagreened 



throughout ; aperture somewhat squarely 



ovate, lip thinly reflected, whitish, broadly 



dilated next the umbilicus. 

 Helix sylvestris, Studer (1789), Faun. Helv. Coxe, 



Trav. Switz. vol. iii. p. 43 (without characters). 

 Bulimus montanus, Draparnaud (1801), Tabl. Moll. 



p. 65. 

 Helix Lackhamensis, Montagu (1803), Test. Brit. 



p. 394. pi. ii. f. 3. 

 Helix buccinata, Alten (1812), Syst. Abhand. p. 100. 



pi. xii. f. 22. 

 Lymncea Lackhamensis, Fleming (1814), JEdin. Encyc. vol. vii. part 1. p. 78. 

 Bulimus obscurus var., Hartmann (1821), Syst. Gast. p. 50. 

 Helix montana, Ferussac (1822), Tabl. Syst. p. 60. 

 Bulimus Lackhamensis, Fleming (1828), Brit. Anim. p. 265. 

 Bulimus Montacuti, Jeffreys (1830), Trans. Linn. Soc. vol. xvi. p. 345. 

 Ena montana, Leach (1831), Brit. Moll. p. 112. 

 Buliminus Lackhamensis, Beck (1837), Ind. Moll. p. 71. 

 Merdigera montana, Held (1837), Isis, p. 917. 

 Bulimus (Ena) montanus, Moquin-Tandon (1855), Hist. 31 oil. vol. ii. p. 289. 



pi. xxi. f. 1 to 4. 

 Hab. Central Europe. South and west- central counties of England. (In 



wooded districts, on trees and among decaying leaves.) 

 This and the next species live, as their dull fuscous horny shells, 

 without pattern or marking of any kind, indicate, in moist woody 

 districts, on trees or among decaying leaves. B. montanus, which 

 is the larger, has an obtuse conically cylindrical shell of seven whorls, 

 obliquely striated and minutely shagreened throughout. The ani- 

 mal is described as being like that of B. obscurus, but paler. It 

 inhabits the south and west- central counties of England, and is 

 very local. On the Continent it appears to have the same kind of 

 distribution, in rather more elevated situations. 



