SUBULINA, EAST AFRICA. 93 



whorls 9, a little gradate at the sutures, two at the apex 

 effuse ; longitudinally obliquely striate ; the last whorl oblong, 

 straight, columella truncate. Aperture oblong-ovate; peris- 

 tome simple and thin. Length 9.5, diam. 2.25 mm. 

 (M. & P.). 



Ovampoland (Mr. Chapman). 



Stenogyra chapmani M. & P., Ann. and Mag. N. H. (6), 

 ix, p. 90, pi. 6, f. 3 (Jan., 1892). 



"An extremely pretty though very small shell, of which 

 the three specimens in Mr. Layard's collection are all more 

 or less imperfect. They bear a decided superficial resem- 

 blance to certain marine forms of the genus Chemnitzia, the 

 shell being very delicate, white, eight- or nine-whorled, the 

 whorls gradated at the sutures and longitudinally finely 

 ribbed with raised strise." (Melv. & Pons.) 



31. S. CHIRADZULENSIS E. A. Smith. PI. 14, fig. 47. 



Shell elongate, irnperforate, pale corneous, thin, subpel- 

 lucid, striated with delicate oblique growth-lines. Spire mod- 

 erately acuminate, submamillate apically. Whorls 9, 

 slightly convex, bordered by a narrow pellucid line below 

 the suture. Aperture inversely auriform, slightly more than 

 one fourth the total length. Columella arcuate, obliquely 

 truncate in front, the lip simple, thin. Length 18, diam. 5 

 mm. (Smith}. 



Mt, Chiradzulu, 5000 ft., British Central Africa (Whyte). 



Subulina c., SMITH, P. Z. S. 1899, p. 588, pi. 33, f. 46. 



Allied to 8. subcrenata Martens. The lines of growth are 

 somewhat strong below the suture, producing a subcrenulated 

 appearance. Prof. E. von Martens (in litt.) informs me that 

 it is distinct from all he has described, but comes near his 

 8. pinguis, being distinguished by its broader whorls and 

 the different form of the upper part of the spire (Smith) . 



32. S. UNCTA E. A. Smith. PI. 14, fig. 48. 



Shell elongate, thin, pellucid-corneous, polished; whorls 8, 

 rather rapidly increasing, convex, sculptured with oblique, 

 scarcely visible growth-lines, the last whorl elongated. Spire 



