Demoulia ventricosa nataliae: Globose, body whorl well-rounded, aperture ovate; labrum evenly rounded, not or barely flattened above, base rather patulous. Spire markedly more exserted than in v. ventri-cosa and apex is not mamillate. Base of columella with coarse denticles. Ground colour usually orange-pink, the mottled brown form, so common in the nominate subspecies, being rare. As a rule rather smaller in size than v. ventricosa.
Dimensions: 21,1 x 14,1 mm; 21 x 15 mm (holotype); 19,7 x 16,1 mm.
Distribution:
Mzamba (eastern Pondoland) to Durban; in addition the Zululand material recorded by Barnard (1959) is presumably referable here, but has not been examined. Type locality Durban, SOUTH AFRICA.