76 BRITISH MOLLUSKS. 



14. Helix hispida. Hairy Helix. 



Shell ; rather openly umbilicated, orbicularly depressed, rufous or 

 yellowish horny, faintly banded at the periphery, 

 semitransparent, downy with short hairs; spire 

 convex, impressed at the sutures, whorls five to 

 six, rather narrow, sometimes obtusely produced 

 at the periphery, densely obbquely striated, aper- 

 ture rather small, broadly lunar, lip thinly ex- 

 panded, white-ribbed at some distance within, 

 basal margin a Httle drawn out. 

 Helix hispida, Linnaeus (1758), Syst. Nat. 10th edit. f. 771. 

 Trochulns hispidus, Chemnitz (1766), Conch. Cab. vol. ix. 



part ii. p. 52. pi. cxxii. f. 1057, 1058. 

 Helix plebeium, Draparnaud (1805), Hist. Moll. p. 105. pi. vii. f. 5. 

 Helix rudis and rufescens, Studer (1820), Kurz. Verz. p. 86, 87. 

 Helicella hispida, Bisso (1826), Hist. Nat. Europ. Merid. vol. iv. p. 72. 

 Helix lurida, Ziegler (1828), Pfeiff. Deutsch. Moll. vol. ii. p. 33. pi. vi. 



f. 14, 15. 

 Helix concinna and plebeia, Jeffreys (1833), Trans. Linn. Soc. vol. xvi. 



p. 510. 

 Bradybcena hispida and plebeia, Beck (1837), Ind. Moll. p. 20. 

 Fruticicola hispida, Held (1837), Isis, p. 914. 

 Helix depilata, Alder (1837), Mag. Zool. and Bot. vol. ii. p. 107 (not of 



Draparnaud). 

 Helix (Zenobia) concinna, hispida, and plebeia, Moquin-Tandon (1855) 



Hist. Moll. vol. ii. p. 221, 224, 225. pi. 17, f. 8, 9, 14 to 18. 

 Hab. Central and Southern Europe. Common throughout Britain. Si- 

 beria. (Under stones, fallen trees, decaying leaves, etc.) 

 This species somewhat resembles H. rufescens in form, but the 

 shell is much smaller and more hairy. There are four well-marked 

 varieties. In a typical state the epidermis is covered with a down of 

 fine hairs ; in the variety of which Mr. Jeffreys has made a species, 

 H. concinna, the whorls are rather produced at the periphery, and 

 the hairs are fewer and more deciduous ; in a variety named by 

 Mr. Alder H. depilata, the shell is bald ; lastly there is a small 

 dwarfed form, called the mountain variety. The spire is rather more 

 depressed in some species than in others, and the whorls in such 

 specimens are less closely convoluted, leaving a more open umbilicus. 

 The animal is mostly of a mottled grey colour, Hghter towards the 

 edge of the foot. 



H. hispida is common throughout Central and Southern Europe, 



