262 
C. (Rissoa) Gracitis Macg. Ab. p. 152. Tur- 
reted, subcvlindrical, of six thin pellucid glossy 
moderately convex whorls, the suture deep ; mouth about 
one fourth of the length, ovate, oblique, a little narrowed 
behind, the peristome complete, thickened externally on 
the outer lip, thinner and direct on the inner, leaving a 
very small cavity : hyaline white, brownish red around 
the mouth. Aberdeen. 0,102...0,025. Very like 
Rubra but is less attenuated and the mouth rounder. 
