70 



Mr. H. B. Preston on the 



Kaliella victoricn, sp. n. (Fig. 2.) 



Shell small, tuvbinatcly conic, pale reddish brown ; whorls 5^. 

 regularly increasing, the last strongly carinate at the peri- 

 phery, sculptured with closely set, rather fine, oblique, trans- 

 verse plic£e and microscopic, somewhat indistinct, spiral striae; 

 base of" shell closely spirally striate ; suture impressed ; colu- 

 mella obliquely descending, somewhat outwardly reflexed, 

 spreading above into a light, well-detiiied, j)arietal callus 

 which reaches the margin of the labruni j labrum simple, 

 acute ; aperture subrectangular. 



Alt. 3 ; diam. maj. 3*5, diam. min. 3 mm. 



Aperture: alt. 1, diam. 1*25 mm. 



Hah. Victoria Falls (J/. ConyioUy). 



Distinguishable from Helix {Trochonanina) pretorlensis^ 

 Melv. & Ponsonby^, chiefly by its less laterally compressed 

 form and in having spiral stria3 not only on the base but also 

 on the whorls. 



Thapsiella connoVyij sp. n. (Fig. 3.) 



Shell small, perforate, depressedly turbinate, pale reddish 

 brown, shining ; whoils 4j, rather convex, sculptured with 

 very oblique, closely set, somewhat wavy, transverse plicae ; 

 base of shell sculptured with closely set, tine, revolving, wavy 



Fig. 3. — Thapsiella curmallyi. 



Fig. 4. — JuDiinia corniyata. 



striix?; suture well impressed ; umbilicus very narrow, deep; 

 columella slightly obliquely descending, outwardly expanded, 

 diffused above into a light, whitish, ill-detined callus which 

 does not reach right across the parietal wall ; labrum simple; 

 aperture obliquely sublunate. 



Alt. 2; diam. maj. 3-25, diam. min. 3 mm. 



Aperture: alt. 1, diam. 1"25 mm. 



Ilab. Kain Forest, Victoria Falls {M. Connolly). 



* Ann. & Mag. Nat. Hist. 1890, vi. p. 469 ; 1892, ix. pi. iv. fig. 5. 



