Genus Nematogenia Eisen, 1900

Ocnerodrilus (Nematogenia) Eisen, 1900: 112 .

Nematogenia— Michaelsen 1900: 376; Stephenson 1930: 862; Gates 1972: 272.

Type species. Pygmaeodrilus lacuum Beddard, 1893 .

Distribution. Guinea to Congo, tropical Africa (Gates 1972). Remarks. Only one species has been recorded in Vietnam.