AURICULID^E. 106 



dinally, shining, pale fulvous ; spire convexly conic, with the 

 apex blunt ; whorls five and a half, moderately convex, faintly 

 striated spirally along the suture, the last forming- three-fifths of 

 the total length, marked with brownish streaks, indistinctly 

 angled above, scarcely attenuated at base ; aperture nearly per- 

 pendicular, aeuminately semiovate ; parietal plaits two, the 

 upper one obsolete, the other rather oblique ; columellar plait 

 slightly twisted, nearly perpendicular ; peristome sharp ; right 

 margin scarcely thickened within, slightly sinuate above; colu- 

 mellar margin callous, dilated, adnate. Length 19, breadth 

 1\ mill. 



Ellobium simplex, H. and A. Adams in Proc. Z. S. 1854, p. 8. 



n. 13 ; Gen. rec. Moll. ii. p. 238. 

 Auricula simplex, Pfr. Syn. Auric, n. 141 ; Mon. Auric, p. 138. 



Hab. ? 



21. Auricula Dunkeri. 



Shell imperforate, fusiformly oblong, solid, smooth, very faintly 

 striated longitudinally, covered with a fulvous horn-coloured pe- 

 riostraca ; spire convexly conic, with the apex pointed ; suture 

 linear, rather irregular ; whorls about eight, rather fiat, the 

 upper ones irregularly eroded, the last forming about two-thirds 

 of the total length, slightly attenuated at base ; aperture nearly 

 perpendicular, narrowly semiovate ; columella slightly twisted 

 and plaited ; parietal plaits two, one middle-sized, oblique 

 below the middle, the other indistinct next the columella ; 

 peristome sharp, somewhat thickened within ; columellar margin 

 scarcely dilated, reflexed, adnate. Length 20, breadth 1\ mill. 



Auricula Dunkeri, Pfr. in Zeitschr.f. Malak. 1853, p. 125; Syn. 



Auric-, n. 142 ; Mon. Auric, p. 138. 

 Ellobium Dunkeri, H. and A. Adams, Gen. rec. Moll. ii. p. 237. 



Hab. Borneo. 



22. Auricula Oparica. 



Shell imperforate, fusiformly subulate, smooth, pale fulvous; 

 spire convexly turrited, with the apex pointed ; suture linear, 

 irregular; whorls eight, flat, the last a little longer than the 

 spire, much attenuated at base; aperture nearly perpendicular, 

 narrow, aeuminately seihiovate, with three plaits ; parietal plait 

 single, small, rather compressed below the middle ; columellar 

 plaits two, indistinct, parallel to each other, the lower twisted 

 and truncate; peristome simple, sharp, right margin rather up- 

 pressed above. Length 13, breadth 5 mill. 



f 5 



