154 Bulletin American Museum of Natural History [Vol. LITI 
the left side and slightly behind’ the posterior fourth of the length. The posterior 
_slope is strongly concave, the anterior convex; right slope straight and steep, the 
left convex. Sculpture of weak but distinct radial strie. 
Length, 3.5 mm.; width, 2.45 mm.; height, 1.5mm. Type. 
ee ca! 5) Pe eal Paratype. 
Smaller and relatively higher than the related B. caffer. 
Burnupia transvaalensis (Craven) 
Plate XII, Figures 1 and la 
Ancylus transvaalensis CRAVEN, 1880, Proc. Zo6l. Soc. London, p. 617, Pl. tv11, 
fig. 11 (type locality: Mooi River, Transvaal). 
Ancylus (Burnupia) transvaalensis Craven. B. WALKER, 1912, The Nautilus, 
XXV, p. 142. 
Burnupia transvaalensis Craven. B. WALKER, 1924, ‘Ancylide of South Africa,’ 
9,62, Plt, ne, 18, | 
Lubumbashi River, on dead Etheria shells; Panda River at Likasi 
(both Michael Bequaert Coll.). 
The apex is less recurved and the radial sculpture weaker than in 
B. caffer, with which the specimens were found associated. The figured 
specimen from the Panda River measures: 
Length, 5.8 mm.; width, 4,0 mm.; height, 2.25 mm. 
Burnupia edwardiana, new species 
| Plate XII, Figures 4 and 4a 
Kabare, Lake Edward (J. Bequaert Coll.). 
The shell is thin, small, oval, the left outline more convex than the right, the 
apex glossy, blunt, a little in front of the posterior fourth of the length, having a wWell- 
impressed apical pit; weakly radially punctate; the rest of the shell dull, finely and 
delicately striate radially, brownish. The anterior and left slopes are convex, posterior 
slope concave, right slope concave near the summit, then straight. 
Length, 3.15 mm.; width, 2.2 mm.; height, 1.25 mm. 
_ This form differs from any described African species, according to 
Bryant Walker. 
Burnupia walkeri, new species 
Plate XII, Figures 7 and 7a 
Ancylus stuhlmanni “‘E. v. Martens” DauTzENBERG AND GERMAIN, 1914, Rev. 
Zool. Afric., IV, 1, p. 47 (in part; specimens from Kalengwe). 
Kalengwe, in the Lualaba River (type locality; J. Bequaert Coll.)- 
The shell is thin, elliptical, the sides equally curved, greatest width at about the 
anterior third. The anterior slope is convex, the posterior concave; both lateral 
slopes straight. The summit is obtuse, distinctly flattened; apex with the usual 
Burnupia punctation but no apical pit, situated at the posterior third and much 
nearer the median line than the right side. Sculpture of fine radial strie. 
