HELIX. 



241 



r ar. TAURICA (Krynicki) Mousson. PL 67, fig. 95. 



The example here figured was sent me by Mousson as his type of 

 turica. It differs from radiosa Zgl. (which usually is considered a 

 synonym of taurica), very materially; shows only quite indistinct 

 traces of longitudinal streaks, but instead of them two very sharply 

 outlined broad reddish brown bands. The columella is notably 

 callus, with distinct lip, and the margins of the lip are joined by a 

 thin white callus; the columella also is white, with a brown spot at 

 its insertion. (Kobelt.') 

 [. RADIOSA Ziegler. PL 57, fig. 29. 



Imperforate or subimperforate, globose ; color-pattern a combina- 

 tion of spiral bands and oblique streaks of chestnut on white ground 

 the bands diffuse and coalescent into two on the body-whorl, the 

 longitudinal streaks predominating; upper whorls showing two or 

 three narrow bands, the inner two whorls unicolored, corneous ; 

 ly-whorl globose, indented around the axis. 

 Alt. 45, diam. 42 mill. 



Caucasus. 



Differs from H. Incorum in the preponderance of the longitudinal 

 :reaks over the revolving bands; there is a narrow white zone, 

 lore or less distinct, encircling the periphery ; the columellar lip 

 is partly white, partly flesh-color ; the parietal callus is very thin, 

 rliite. 



[. s< HLAKFLII Mousson. PL 68, fig. 12. 



Covered perforate, globose, solid, yellowish or soiled white, with 

 ivc spiral brown bands, generally not sharply defined, the second 

 third usually coalescent, the upper and lower bands usually 

 irrower, rudely irregularly coarsely obliquely striate and with fine 

 'regular impressed spiral stria? ; spire conoidal, apex very obtuse, 

 -mooth, shining, rather large, sutures slightly irregular, well-im- 

 ; whorls 4], convex, rapidly widening, especially the last; 

 )o( ly-whorl globose, a trifle indented around the axis, somewhat 

 ffcending anteriorly ; aperture rotund-lunate, oblique, brownish 

 Into with brown bands within ; peristome very regularly arcuate, 

 columella arched, outer and basal margins simple, columellar 

 giu dilated, reflexed and adnate over the axis, deep brown in 

 lor. Diam. 51, alt. 50 mill. 



The narrower aperture, adnate columellar lip, completely closing 

 ie perforation, and of a dark brown color, will separate this form 

 16 



