'0 



BRITISH MOLLUSKS. 



Helix disjimcta, Turton (1819), Conch. Diet. p. 61. f. 63. 



Helicella variabilis, Eisso (1826), Hist. Nat. Enrop. Merid. vol. iv. p. 71. 



Helix monilifera, Menke (1830), Syn. Moll. 2nd edit. p. 22. 



Tela virgata, Leach (1831), IWtf. Man. p. 93. 



.Befor Terverii, Michaud (1831), Cbiwp. JlfoK. Drop. p. 26. pi. xiv. f. 20, 21. 



XeropMla variabilis and Terverii, Held (1837), Isis, p. 913. 



Thea virgata and Terverii, Beck (1837), Jrcd. JfoZZ. p. 12. 



Helix (Heliomane) variabilis, Moquin-Tandon (1855), Hist. Moll. vol. ii. 



p. 262. pi. xix. f. 21 to 26. 

 Hab. Central and Southern Europe. North Africa. Nearly throughout 



Britain. (Chiefly in sandy and chalky districts near the sea.) 



This and the two following species are the snails seen in such my- 

 riads on our chalk downs after a shower of rain, crawling up the 

 blades of grass ; and it is said to be owing in some measure to the 

 rebsh of the sheep for these dainties, that our Southdown mutton 

 has attained its celebrity. H. virgata has a subglobose buff-tinted 

 shell, very prettily painted with rust-brown bands, of various widths, 

 and lines, and the aperture is often tinged with a blush of flesh-pink, 

 just within the lip, where there is an internal rib. The animal is 

 rather coarsely wrinkled, pale at the sides, and livid-purple about the 

 neck and head. It is much less abundant in our inland counties. 

 On the Continent it follows the usual range of southern species to 

 North Africa. 



9. Helix fasciolata. Finely-banded Helix. 



Shell ; rather largely umbilicated, depressly globose, dead- white or 

 buff-tinted, variously encircled with occasionally 

 interrupted rust-brown bands and lines, spire but 

 little exserted, horny at the apex, whorls five and 

 a half, rather narrow, slopingly rounded, faintly ob- 

 tusely keeled at the periphery, obliquely wrinkled 

 throughout with close-set rib-like striae; aperture 

 small, lunar-rounded, with an internal milk-white 

 nb, lip simple, ribbed within, sometimes tinged 

 with flesh-pink. 



Helix fasciolata, Poiret (1801), Coq. de VAisne, p. 79. 



Helix striata, Draparnaud (1801), Tabl. Moll. p. 91 (not of Mailer). 



Helix caper ata, Montagu (1803), Test. Brit. p. 430, pi. xi. f. 11. 



Helix crenulata, Dilhvyn (1817), Recent Shells, vol. ii. p. 895. 



Helix strigata, Studer (1820), Kurz. Vers. p. 87 (not of Miiller). 



