76 STREPTAXIS. 



slightly reflected, profoundly sinuated above, causing an internal 

 projection, sinuous and reflected below. Diam., 10'5 mill. 



Ceylon. 

 S. OBTUSUS, Stoliczka. PI. 15, fig. 45. 



Perforate, closely arcuately costulate, costulae obsolete on 

 the base; whorls 7, suture impressed; parietal wall laminate; 

 lip thickened, with a small tooth on the outer, and another 

 larger one on the columellar margin. Diam., 10'4 mill. 



Moulmein, Province of Tenasserim, Burmah. 



S. FUCHSTANUS, Gredler. PI. 15, figs 39, 40. 



Infundibuliformly umbilicated,thin, shining, hyaline ; aperture 

 very oblique, tridentate, with a tooth each on the middle of the 

 outer and columellar margins, and a lamina on the parietal 

 margin, the marginal teeth indicated exteriorly by scrobicula- 

 tions ; lip reflected, sinuous above. Diam., 4'5 mill. 



Hunan, China. 

 S. BIDENS, Mollendorff. PI. 15, figs. 37, 38. 



Openly umbilicated, thin, shining, slightly arcuately striate ; 

 greenish hyaline; whorls 6, distinctly striated at the suture; lip 

 white, reflected, arcuate and thinner above ; parietal wall with a 

 strong laminar tooth, with a smaller one opposite on the lip. 



Diam., 9 mill. 



Isl. of Hainan, China. 



S. DISTORTUS, Jonas. PL 15, figs. 58-60. 



Perforate, rather thin, diaphanous, closely arcuately striate 

 above, suture submarginate ; whorls 5J, the last smooth on the 

 base, carinately compressed in front ; parietal wall with a com- 

 pressed entering lamina; lip white, reflected, with a basal tooth 

 corresponding with an exterior scrobiculation. Diam., 10'5 mill. 



Guinea (Jonas) ; Isl. Rodriguez (Mus. Cuming). 



S. PEROTTETI, Petit. PI. 15, figs. 68, 69. 



Profoundly rimate, rather thin, lightly striated, yellowish white, 

 spire submarginate ; whorls 6-J- ; aperture with two subparallel 

 laminse ; lip rather thin, expanded-reflected, with three teeth, 

 situated within the outer, basal and columellar margins respec- 

 tively. Diam., 9'5 mill. 



Nilgiri Mountains, India. 



