98 TRUNCATELLINA OP SOUTH AFRICA. 



Cape of Good Hope: Griqualand East, type loc. (Sykes 

 coU.) ; Port Elizabeth (Reeve) ; Pirie (Godfrey) ; Grahams- 

 town (Farquhar). Natal: Majuba (Connolly); Durban; 

 Umbilo Road (pentheri, Penther) ; Edendale; Game Pass; 

 Ntimbankulu (Burnup). Zululand: Dukuduku (pentheri, 

 Toppin). 



Pupa sykesii MELV. & PONS., Ann. Mag. N. H. (6), xi, 1893, 

 p. 21, pi. 3, f. 6; xii, 1893, p. Ill (corrected description); 

 (8), i, 1908, p. 81, pi. 2, f. 20 (with var. inconspicua Burnup, 

 f. 21). Pupa pentheri STURANY, Catal. Siidafr. Land- und 

 Siisswasser-Moll., p. 70, in Denkschr. k. Akad. Wien, Ixvii, 

 1898, p. 606. 



The second, emended, description of Melvill and Ponsonby 

 is given above, and their second figure (pi. 10, fig. 11), drawn 

 by Burnup. This does not show sculpture as strong as one 

 would infer from the description; probably the latter is in- 

 correct. 



Specimens before me from Game Pass of the Upper Mooi 

 River (Burnup) have no riblets, merely slight, irregular 

 growth-striae. The shape varies between that of sykesi and 

 inconspicua. Two measure : 



Length 2.02, diam. 0.75 mm.; 7% whorls (fig. 15). 



Length 1.84, diam. 0.8 mm.; 634 whorls (fig. 14). 



A set from Cradock (Farquhar) shows weak costulation, a 

 little stronger on the upper post-embryonic whorls, or merely 

 striation, some being almost as smooth as the preceding, and 

 none strong as in the northern T. iota. 



Length 2.17, diam. 0.84 mm.; 7% whorls (fig. 17). 



Length 1.73, diam. 0.7 mm.; 6% whorls (fig. 16). 



Pupa pentheri Sturany. PI. 10, fig. 13. The shell consists 

 of about 7% very regularly convex whorls, which are smooth 

 and parted by a deeply-cut suture. The shape is conic, as it 

 is wider at the base than above, and gradually tapers up- 

 wards. The apex is obtuse. Length 1.7, width 0.6 mm. Dr. 

 Penther collected this minute species abundantly in Umbilo 

 Road (Sturany). 



29a. T. sykesi inconspicua (Burnup). PI. 10, fig. 12. 



"Shell very small, rimate, subcylindrical, elongate-oval, 



