HELIX.— Plate CXLVI. 



The wood Helix. Shell deprcssly globose, whitish- 

 yellow, striated, four-banded, bands often interrupted 

 in blotches or flowing together ; whorls five, rather 

 convex, the last a little deseendiug in front ; aperture 

 lunar-rounded; lip slightly patulate, straight, edged, 

 columellar margin furnished inwardly with a subdi- 

 lated callosity and with au umbilical spot which ai'C 

 generally violet-red. 



Dbapaenaci), Hist. Moll. p. 93. pi. 6. f. 1, 2. 

 Eelix signata, Ferussac. 

 Helix mutahilk, Hartmann. 



llab. France and Switzerland. 



The bands vary in number from three to five, and frc- 

 quently flow broadly into each other. 



Species 948. (Fig. a, b, Mus. Cuming.) 



Helix atrolabiata. Hel. testa imperforatd, depresso- 

 globosd, solidd, nigtdoso-striatd, epidermide sordidijla- 

 vescente indutd, nigro-trifaiciatd ; spird exserld, upice 

 obtttsd; anfradibus quinque ad sex, conveximculis, ul- 

 timo antice valde de/lexo ; aperliird transversim dila- 

 lald, lunari ; peristomate lule expanw, itdus alro- 

 brumiescente, marginibus callo nigro, introrsum diffusa, 

 jmwtis, basali re/lexo, lato, piano, medio subincrassalo. 



The black-lipped Helix. Shell imperforated, de- 

 pressly globose, solid, rougldy striated, covered with 

 a dull yellowish epidermis, encircled with three black 

 bands ; spire exserted, obtuse at the apex ; whorls 

 five to six, rather convex, the last much deflected 

 in front ; aperture transversely dilated, lunar ; lip 

 broadly expanded, black-brown within, margins joined 

 by a black callosity which is difl"used inwardly, basal 



margin dilated, broad, flat, rather thickened in the 



middle. 

 Krynicki, Bull. Mosc. vol. vi. \). 425. pi. 9. 

 Uab. Caucasia. 



Closely allied to the preceding species, though larger 

 and stouter, and conspicuously euamclled with brown- 

 black. 



Species 949. (Fig. a, b, Mus. Cuming.) 



Helix Vixdobonensis. Hel. testa imperforatd, tubglo- 

 bosd, costulato-striatd, luteo-aUtd vel luted, fasciatd; 

 atifraclibns quinque, convexiusculis, ultimo antice bre- 

 viler dejlexo ; aperturd lale suiiangulato-lunari ; peri- 

 stomate late expanso, hepatico, marginibus approximatit, 

 columellari strictiusculo, albo-labiato, basi replicatim 

 adnata. 



The Vienna Helix. Shell imperforated, subglobose, 

 rib-like striated, yellowish -white or yellow, four- 

 banded ; whorls five, rather convex, the last shortly 

 deflected in front ; aperture broadly subangularly 

 lunar ; lip broadly expanded, liver-coloured, margins 

 approximated, columellar margin rather drawn out, 

 white-edged, folded back at the base. 



Helix sylvatica, var. Findobonemis, Ferussac, Hist. Moll, 

 pi. 32 A. f. 6, 7. 

 Helix Vindobonensis, C. Pfeiffer. 

 Heli.v midabilis, Hartmann. 

 Helix Austriaca, Jluhlfeldt. 

 Helix aireitsis, Krynicki. 



Hab. Austria. 



Chiefly distinguished from U. sylvatica by its more glo- 

 bose form. 



