GLESSULA. 411 



apex acute. Whorls 9, a little convex, shightly gibbous at the 

 upper suture, the last whorl equalling in width -J- of the entire 

 length of the shell. Aperture slightly oblique, pyriform ; peri- 

 stome with acute margins, the callus on the parietal wall scarcely 



Fig. 128. Glessula sisparica. 



perceptible ; upper margin scarcely curved and nearly vertical, 

 basal margin deeply curved ; columella slightly arcuate, truncate. 



Length 17'75, diam. 5-75 mm. ; apert. height 5-5, width 3 mm. 



Hab. India : Sispara, Nilgiris (Beddome). 



Type in the British Museum. 



This new species differs from G. tenuitesta in having an acute 

 apex, a deeper suture, in the whorls being gibbous at the upper 

 suture, in the last whorl being more sloping behind the columella, 

 and lastly in being distinctly costulate-striate. From G. leptospira 

 it may be separated by the straight sides of the spire, the acute 

 apex, and the narrower base. One specimen possesses 9-J- whorls, 

 and measures 18'25 x 6 mm. Two of the earlier whorls appear 

 to have been fractured at an early stage, so that the shell has the 

 spire slightly tilted. 



391. Glessula tenuitesta, sp. n. 



Shell elongate-conoid, pale corneous, thin, translucent, polished, 

 shining, densely covered with minute impressed lines. Spire 

 slightly convex ; suture shallow, apex obtuse. Whorls 8|, slightly 

 convex, increasing rather rapidly, the last whorl equalling in width 



Fig. 129. Glessula tenuitesta. 



nearly J- of the entire length of the shell, tumid below behind the 

 columella. Aperture a little oblique, broadly obovate ; peristome 

 with acute margins, connected by a thin callus on the parietal 

 wall ; outer margin slightly curved, basal margin arcuate ; columella 

 deeply arcuate, obliquely truncate. 



Length 18, diam. 6 mm. ; apert. height 5, width 3 mm. 



Hab. India: Sispara, Nilgirifl (Beddome). 



Type in the British Museum. 



