Notes on the non-marine molluscs of the island of Borneo. 3. The genus Platycochlium (Gastropoda Pulmonata: Streptaxidae)

The three species of the genus Platycochlium (Streptaxidae) have been revised by Dance (1970). However, P. sarawakense now proves to contain some variable populations, which partly obscure the differences between this species and P. saulae. A new account of all species is given, and the differences between the above-mentioned species are re-assessed.