PLATE CXXXVl. 



HELIX ARBUSTORUM. 



SINGLE-STREAK SNAIL. 

 GENERIC CHARACTER. 



Aperture of the mouth contracted and lunulated. 



SPECIFIC CHARACTER. 



Shell umbilicated, convex, aperture somewhat orbicular, lip reflected, 

 with a single dark spiral band. 



Helix Arbustorum: testa urnbilicata convexa acuminata, aper- 

 tura suborbiculari bimarginata : antice elongata. 

 Linn. Sy st. Nat. p. 1243. No. 680. 



Cochlea testa utrinque convexa subcinerea : fascia solitaria grisea, 

 labro reflexo. Linn. Fn. Suec. 1. p. 370, No. 

 1295. IliVo. 2184. 



Cochlea maculata, unica fascia pulla, angustioreque, per medium an- 

 fractus, insignita. List. II. An. Angl. p. 119. 

 tit. 4. tab. 2. fig. 4. 



Cochlea subflava maculata atque unica fascia castanei colons per me- 

 dium anfractus, insignita. Phil. Trans, No. 

 105. fig. 4. 



