ENNEA. 103 



E. SESAMUM, Morelet. PI. 20, fig. 35. 



Rimate, very minutely perforate, slightly costulate-striate, 

 corneous, last whorl lightly scrobiculate ; aperture with a parietal 

 lamina and tooth on the right margin; lip thickened, white, 

 shortly expanded. Length, 4 mill. 



Comoro Islands. 

 E. MILIUM, Godwin-Austen. PI. 18, fig. 68. 



Somewhat shining, diaphanous ; aperture with a small parietal 

 lamella, and a strong tooth on the right margin ; lip thickened, 

 a little reflected. Length, 2-5 mill. 



Assam. 

 E. MICRODINA, Morelet. PI. 20, fig. 46. 



Perforate, slightly costulate, hyaline, last whorl horizontally 

 protracted, not compressed, the base deeply scrobiculate ; aper- 

 ture with a parietal lamella, and columellar tooth ; lip thickened, 

 with simple margin. Length, 2*5 mill. 



Comoro Islands. 



The horizontal protraction of the last whorl, and consequently 

 modified umbilicus, are characters which readily distinguish this 

 little shell from those with which I have associated it. 



E. BBEVICULA, Morelet. PL 20, fig. 31. 



Deeply rimate, slightly regularly striate, shining, brownish 

 corneous, suture submarginate, base scrobiculate ; aperture with 

 a parietal lamella, and a tooth on either margin; lip white, 

 slightly expanded, slightly conti acted in the middle. 

 ' Length, 4-5 mill. 



Comoro Islands. 



E. BALFOURI, Godwin-Austen. PI. 20, figs. 64, 65. 



Excavately perforate, rather solid, regularly slightly costulate, 

 wax-white, or dull pale umber; aperture with small parietal 

 thickening, columellar plica, and tooth on the right margin ; lip 

 white, callous, reflected. Length, 6 mill. 



Socotra. 



*** 



E. PIRRIEI, Pfeiffer. PI. 19, fig. 12. 



Flexuously rimate, somewhat solid and shining, diaphanous, 

 yellowish white ; upper whorls smooth, the last two with capil- 

 lary strise, occasionally varicose, base lightly scrobiculate ; 



