PRESTON: ON MOLLUSCA FROM UGANDA. »\i 



Uganda, which appears to he its nearest ally ; it is, however, more 

 depressed than that species ; moreover, it is of a darker colour, the 

 sculpture both on the spire and on the base is much finer, and tlie 

 umbilicus is much narrower. 



AcHATiNA (Burtoa) I^ilotica, Pfr. 

 Two specimens, one adult and in fine condition, the other young. 



LiMicoLARiA dimidiata, Marteus. 

 A number of specimens exhibiting great diversity of coloration, 

 two of them being of an almost uniform pale-yellow tint. 



LiMicoLARiA Martensiana, Smith. 

 Two specimens. 



LlMlCOLARIA PONSONBYI, n.Sp, 



Shell elongate, narrowly umliilicate, rather thin, painted throughout 

 with straight and zigzag bands and streaks of reddish brown ; whoils 

 8-9, sculptured, especially on the first five or six volutions, witli 

 coarse striae corresponding to the lines of growth and much broken up 



by shallow spiral grooves, thus presenting a malleated appearance ; 

 suture impressed and somewhat crenulated ; aperture inversely 

 auriform ; columella straight, reflexed over the umbilical region, and 

 tinged with purple ; peristome simple. Diam. maj. 25, alt. 56-5 mm. ; 

 aperture, diam. 11, alt. 22 mm. 

 ITab. — Uganda district. 



LmicoLARiA Smithi, n.sp. 

 Shell elongate, cylindrical, scarcely perforate, painted with streaks, 

 bands, and blotches of rich red brown, the last concentrated into 



