The Metaniidae are family of freshwater sponges, with five genera and 25 species:
Acalle Gray, 1867Acalle recurvata (Bowerbank, 1863)Corvomeyenia Weltner, 1913Corvomeyenia carolinensis Harrison, 1971Corvomeyenia epilithosa Volkmer-Ribeiro, Rosa-Barbosa & Machado, 2005Corvomeyenia everetti (Mills, 1884)Corvomeyenia thumi (Traxler, 1895)Drulia Gray, 1867Drulia batesii (Bowerbank, 1863)Drulia brownii (Bowerbank, 1863)Drulia conifera Bonetto & Ezcurra de Drago, 1973Drulia cristata (Weltner, 1895)Drulia ctenosclera Volkmer & Mothes, 1981Drulia geayi (Gravier, 1899)Drulia uruguayensis Bonetto & Ezcurra de Drago, 1969Houssayella Bonetto & Ezcurra de Drago, 1966Houssayella iguazuensis Bonetto & Ezcurra de Drago, 1966Metania Gray, 1867Metania fittkaui Volkmer-Ribeiro, 1979Metania godeauxi (Brien, 1968)Metania kiliani Volkmer-Ribeiro & Costa, 1992Metania melloleitaoi Machado, 1948Metania ovogemata Stanisic, 1979Metania pottsi (Weltner, 1895)Metania reticulata (Bowerbank, 1863)Metania rhodesiana Burton, 1938Metania spinata (Carter, 1881)Metania subtilis Volkmer, 1979Metania vesparia (Martens, 1868)Metania vesparioides (Annandale, 1908)