HELIX.— Plate CXCVII. 



brevi, partd ; iiUiird imprensd ; mffracliiua tribus ad 

 quattnr, ultimo niiil/o maximo ; aperturd siiliijuaJrato- 

 oblongd, labro exliis late incrassaio, iiitus dense caltoao, 

 tub parielem continuo, undique inteim purpureo-vio- 

 laceo. 



Skinner's Helix. Shell subglobosely depressed, thick, 

 solid, very obliquely produced towards the aperture, 

 crerj'whcre minutely granuled, spirally broadly super- 

 ficially grooved, livid chestnut, spirally freckled with 

 a fulvous epidermis, disposed iu hieroglyphic spots ; 

 spire short, rose-colour beneath, small ; suture im- 

 pressed ; whorls three to four, last whorl very much 

 the largest ; aperture subquadratcly oblong, lip ex- 

 ternally broadly thickened, interiorly densely callous, 

 continuous over the body-whorl, everywhere deep 

 purple-\iolet. 



Hab. Ceylon ; Major Skinner. 



A very characteristic species, of solid obliquely pro- 

 duced growth, of the same peculiar type as II. irultoni, 

 from the same locality. The lip is of a particularly deep 

 purple-violet callous deposit continued over the body- 

 whorl, and curiously thickened exteriorly. 



Species 1388. (Mus. Cuming.) 



Helix sodrika. Ilel. lestd impt^foratd, gluhoio-depreiaa, 

 lolidd, obliqui itriatd, alba aut luUsceiile ; anfraclibtu 

 quiuque, coiicextiuciiliji, ulliiiio ad peripheriam obtme 

 anijulalo ; aperturd perobliqud, lunari-rotundatd, la- 

 bro multo incrasaato, refiexo, marginibui callotitate 

 junctia, columellari diUitato, irregulariter el obtoMe 

 denticulato. 



The cousin Helix. Shell imperforated, globosely de- 

 ])ressed, solid, obliquely striated, while or yellowish ; 

 whorls five, rather convex, the last obtusely angled 

 at the peri])hery ; aperture very oblique, lunar round- 

 ed, lip very much thickened, reflected, margins joined 

 by a callosity, eolumcllar margin dilated, irregularly 

 and obsoletcly toothed. 



Ferussac, Hist. Moll. pi. 43. f. C. 



Hab. Cuba. 



A heavy solid colourless species, with a very thickened 

 reflected lip obsoletcly rudely puckered within. 



