narrowed, so as to form a prominent angle near the mid 

 die ; it is also a much thicker shell. 



REFERENCE TO THE PLATE. 



•I'lg. 2, Front view. 

 PI. 37. 



HELIX PROFUNDA. 



DESCRIPTION. 



^hell pale horn-colour : spire convex, very little eleva- 

 ted : whorls five, regularly rounded, and wrinkled trans- 

 versely ; body w/wrl with a single revolving rufous line, 

 which is almost concealed upon the spire by the suture, 

 but which passes for a short distance above the aperture : 

 aperture dilated : labrum reflected, w^hite, and, excepting 

 near the superior angle, flat ; a slightly prominent callus 

 or obtuse tooth near the base on the inner edge : umbilicus 

 large, profound, exhibiting all the volutions to the apex. 



Variety, a. Multilineated w ith rufous. 



Variety b. Rufous line obsolete. 



SYNONYM. 



H. PROFUNDA, Nob. Journ. Mad. Nat. Sc. Vol. 2, p 

 160. 

 H. RicHARDi, Lam. dnim. Sans. Vcrlebr. Vol. 6, pt. 2. 



p. 72. 



