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ON A SMALL COLLECTION OF MOLLUSCA PROM THE NORTHERN 



TRANSVAAL. 



By Major M. Connolly. 

 Bead 10th February, 1922. 

 A SMALL collection of land shells, made in the Shilwane and Sibasa 

 districts by the Eev. H. A. Junod in 1919 and 1920, is of unusual 

 interest, for the reason that no systematic collecting has been done 

 in the Northern Transvaal since the late seventies of last century, 

 when valuable work was carried out there by A. E. Craven, and the 

 results published in two or three papers by himself and the late 

 Edgar Smith. 



Craven's shells were for the most part gathered on the east slope 

 of the Drakensberg range in the vicinity of Ijydenburg goldfields, 

 and the Shilwane district is also on the east slope of the Drakensberg, 

 only 60 miles north of Lydenburg. As might be expected, therefore, 

 several of the same species occur in both collections, and comparisons 

 are important as bearing on the correctness of Craven's 

 identifications, which were made at a time when only a hundred 

 species of land shells had been described from South Africa, and 

 nearly every new find referred to one of the old names. 



Craven's complete list, subject to the latest generic classification, 

 is as follows : — 

 Gulella crassilabris (Crvn.). Achatina dimidiata, Smith. 



„ infans (Crvn.). „ smithi, Crvn. 



Mikrokerkus symmetricus (Crvn.). „ transvaalensis, Smith. 



Helicarion transvaalensis (Crvn.). Euonyma lineata (Krs.). 



„ vandenbroecki (Crvn.). „ turriformis (Krs.). 



Trachycystis planti (Pfr.). Tropidophora kraussianum (Pfr.). 



Edouardia drakenshergensis (Smith). 



Nine of the foregoing species were new to science, and at least 

 two of the remainder were probably misnamed. 



Details of Junod's collection, with descriptions of new species 

 and notes on others, are given below : — 



Genus Gulella, Pfeifier. 

 Gulella sihasana, sp. nov. PL II, Fig. 5. 

 Shell comparatively large and solid, somewhat tubby, rimate, 

 silky, pale olivaceous. Spire produced, sides slightly convex 

 about the fifth whorl ; apex (four whorls) rounded to a blunt point. 

 Whorls 9, almost flat, the first five gradually increasing, remainder 

 almost equal in size ; the first two smooth, remainder covered with 

 strong, close, regular, curved, oblique transverse striae. Suture 

 shallow. Aperture subquadrate, rounded at base, with a strong 

 sinus at the top of the outer lip. Peristome white, shining, expanded 

 and slightly thickened. Eima shallow but well defined. Dental 



