580 ME. EDGAR A. SMITH ON LAND-SHELLS [May 2, 



1. Steeptostele costulata Martens, 



Streptostele costulata, Martens, "Weichth. Deutsch-Ost-A£rikas, 

 p. 34, pi. ii. fig. 33. 



Enb. Nyika Plateau, 7000 feet. 



A single specimen may belong to this species. It agrees very 

 closely with a typical example from Butumbi, but is rather smaller, 

 more slender, and the M'horls are rather higher in proportion to 

 the width. 



2. Ennea (Uniplicaeia) hamiltoni Smith. 



Ennea hamiltoni. Smith in H. H. Johnston's ' British Central 

 Africa,' p. 364 (1897). 



Ennea johnstoni, Smith, Proc. Zool. Soc. 1893, p. 633, pi, lix. 

 fig. 1. 



Hab. Mount Zomba, 6000 feet ; Malosa, 6000 feet. 



The specimens from the latter locality are considerably larger 

 than the types from Fort Johnston, the oblique sculpture is a trifle 

 coarser, and the parietal denticle is entirely absent or only very 

 faintly indicated. The form is variable, as shown by the following 

 measurements : — 



Length 27 1 millim. Width 12. 

 „ 24 ,, „ 13. 



3. Ennea (GtUlella) l^vigata Dohrn. 



Ennea Icevigata, Dohrn, Proc. Zool. Soc. 1865, p. 232 ; Martens, 

 Weichth. Deutsch-Ost-Afr. p. 21. 



Hab. Zomba Plateau ; Masuku Plateau, 6000-7000 feet ; Nyika 

 Eange, 7000 feet ; Mount Chiradzulu. 



Somewhat variable in size and in the development of the upper 

 of the two labral teeth. This in the type is somewhat bifid or 

 tuberculated as described by Dohrn, whereas iu the specimens in 

 the present collection it is simple, sometimes of the same size as 

 the adjacent tooth, but sometimes a trifle larger. 



4. Ennea (Gulella) ticina, sp. nov. (Plate XXXIII. 

 figs. 1, 2.) 



Testa breviter cylindracea, i-imata, subpellucido-albida, nitida, 

 oblique leviter striata, striis infra suturarn distinctioribus ; an- 

 fractus 61, convexi, ultimus 2}enultimo angustior, i^one labrum 

 indentatus .; ajyertxira parva, ringens, dentibus jjilunbus in- 

 cequalibus munita ; dens parietalis inagnus, lamelliformis, labro 

 junctus ; dentes columellares tres, tres supra lahrum, tres ad 

 basin ; peristoma leviter incrassatum, eccpansum et rejlexum. 



Longit. 7 millim., diam. 3| ; aperlura 2| longa. 



Hab. Mount Chiradzulu and Zomba Plateau at 5000 feet. 



Allied to E. triplicaria Martens, but differing in the labral 

 teeth, and also in the almost total absence of a second pai'ietal 

 tooth. Although depicted in the figure, Martens does not mention 



