94 SUBULINA, EAST AFRICA. 



mamillate at the apex; suture oblique, linear, bordered bo- 

 low with a pellucid line. Aperture inversely auriform, 

 scarcely one-third the total length; lip thin and simple. 

 Columella arcuate, truncate in front, covered with a thin re- 

 flexed callus. Length 17, diam. 5.25, aperture 5x3 mm. 

 (Smith). 



Lagari, British East Africa (Steuart Betton). 



Subulina, uncta SM., Journ. of Conch, x, p. 318, pi. 4, f. 18 

 (Apr. 1, 1903). 



"It is remarkable for its very smooth glossy surface and 

 form." 



33. S. DOHERTYI E. A. Smith. PL 14, fig. 49. 



Shell lengthened, ovate-fusiform, thin, pellucid, pale cor- 

 neous, glossy. Whorls 6, rapidly increasing, the upper two 

 smooth, convex, the rest a little convex, parted by a deep 

 Oblique suture, regularly sculptured with delicate, oblique, 

 subflexuous striae, the last whorl lengthened, very obliquely 

 descending. Aperture ovate, acuminate above, the lip very 

 thin. Columella arcuate, shortly truncate in front, covered 

 with a thin callus. Length 9.5, diam. 2.75, aperture 3x2 

 mm. (Smith) . 



Eastern Uganda (Doherty). 



Subulina dohertyi SM., Journ. of Conch, x, p. 319, pi. 4, 

 f. 19. (Apr. 1, 1903). 



"The form of this species is rather unusual, and the striae 

 are distinct and regular. " 



34. S. VITREA (Mousson) . PL 14, fig. 50. 



Shell minute, imperforate, acuminate-turrited, rather thin, 

 glassy, transparent, striatulate, glossy, pale yellowish. Spire 

 regular, the summit obtuse, suture linear. Whorls 8, slowly 

 increasing, the nuclear whorls rounded, following whorls 

 somewhat flattened, the last whorl onerfifth the total length, 

 oval, more convex beneath, not ascending. Aperture sub- 

 oblique (making an angle of 30 degrees with the axis), oval. 

 Peristome unexpanded, acute, the margins remote ; right mar- 

 gin slightly, basal more arcuate; columella concave, obliquely 

 cut at the base. Length 8, diam. 4 mm. (Mouss.). 



