ENNEA. 103 



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



Rimate, very minutely perforate, slightly costulate-striate, 

 corneous, last whorl lightl}' 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 deepty 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. BREVICULA, 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, 

 slightl J T 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 striae, occasionally varicose, base lightly scrobiculate ; 



