Poromyoidea

Poromyoidea is a superfamily of molluscs. It used to contain only the family Poromyidae, but now it also contains Cetoconchidae Ridewood, 1903, as Cetoconcha Dall, 1886 was removed from Poromyidae and given its own family, according to the World Register of Marine Species.

Families and genera
Members of Poromyoidea are:
 * Cetoconchidae Ridewood, 1903
 * Cetoconcha Dall, 1886
 * Poromyidae
 * Cetomya Dall, 1889
 * Dermatomya Dall, 1889
 * Dilemma Leal, 2008
 * †Liopistha Meek, 1864
 * Lissomya Krylova, 1997
 * Poromya Forbes, 1844