78 STREPTAXTS. 



suture; lip reflected, somewhat thickened, whitish, with three lip 

 teeth and a pair of lamellae on the parietal wall. 



Diam., 6*5 mill. 



Nilgirri Mountains, India. 



Yar. ft. Peristome five-dentate, of which three are normal, 

 with an additional small one towards the sinus of the aperture, 

 and a minute one near the umbilicus. 



S. CUMINGIANUS, Pfeiffer. PL 15, figs. 54-56. 



Perforate, smooth, greenish white ; whorls 7; peristome nar- 

 rowly expanded, margins joined by a callus, with two teeth; 

 parietal wall wifti an entering lamina. Diam., 6*6 mill. 



Hob. Brazil ? 

 S. STREPTODON, Moricand. PL 15, figs. 52, 53. 



Perforate, lightly striate, shining, yellowish white ; whorls 7i ; 

 lip white, widely reflected, bearing two teeth not attaining the 

 margin ; parietal wall with a long flexuous lamina. 



Diam. 7, alt. 9 mill. 



Bahia, Brazil. 



Differs from the next species in its larger size and contorted 

 parietal lamina. 



S. DEJECTUS, Petit. PL 15, figs. 47-49. 



Perforate, thin, striulate, shining, yellowish white ; whorls 

 6^, the last infundibuliform around the umbilicus ; parietal wall 

 plicate ; lip reflected, bidentate, the basal tooth transverse. 



Diam., 7*3 mill. 



Bahia, Brazil. 

 S. CINGALENSIS, Benson. PL 15, figs. 50, 51. 



Arcuately rimately perforate, solid, obsoletely costnlately 

 striate, polished below, corneous white, suture crenulated ; 

 whorls 6 ; umbilicus striated, with impressed surrounding lines ; 

 lip reflected, sinuated above, bidentate ; parietal wall with a 



strong, entering lamina. Diam., 11 mill. 



Ceylon. 

 S. CANARICUS, Beddome. PL 15, figs. 70-72. 



Narrowty umbilicated, somewhat shining, filiformly striate, 

 yellowish ; suture submarginate ; whorls 5-J, the penultimate 

 one acutely carinate behind, the last one with three constrictions 

 below the aperture, convex below, compressed around the 



