Notes on the non-marine molluscs of Borneo 10. The genera Bruggennea, Gulella and Sinoennea (Gastropoda, Pulmonata, Streptaxidae)

The species of the genera Bruggennea, Gulella and Sinoennea (Streptaxidae) occurring in Borneo are revised. Five species are dealt with, including Bruggennea luminifera spec. nov. and Sinoennea kennethi spec. nov.