Type-species (monotypic): M. madagascarensis (Ledoyer, 1968a) (as Eriopisella).Habitat: Marine (shallow). [details]
Type-species (monotypic) : N. nagatai (Gurjanova, 1965 ) (as Eriopisella).Habitat: Marine (30-50 m). [details]
Type-species (by monotypy): T. seurati (Gauthier, 1936) (as Eriopisa).Habitat: Slightly brackish well. [details]