title: Poromyidae
text: # Poromyidae
  
  Poromyidae is a family of saltwater clams, marine bivalve molluscs in the order Anomalodesmata. The genus Dilemma, described in 2008, is remarkable for being a predator of copepods, which is very unusual for a sessile mollusc.
  
  ## Genera and species
  
  Genera and species within the family Poromyidae include:
  
  * Cetomya Dall, 1889
  * Dermatomya Dall, 1889
     * Dermatomya buttoni Dall, 1916
     * Dermatomya mactroides (Dall, 1889)
  * Dilemma Leal, 2008
  * Lissomya Krylova, 1997
  * Poromya Forbes, 1844
     * Poromya albida Dall, 1886
     * Poromya beringiana (Dall, 1916)
     * Poromya elongata Dall, 1886
     * Poromya granulata (Nyst and Westendorp, 1839)
     * Poromya houbricki Bernard, 1989
     * Poromya laevis E. A. Smith, 1885
     * Poromya leonina (Dall, 1916)
     * Poromya malespinae (Ridewood, 1903)
     * Poromya neaeroides Sequenza, 1876
     * Poromya neozelanica (Dell, 1956)
     * Poromya rostrata Rehder, 1943
     * Poromya tenuiconcha (Dall, 1913)
     * Poromya tornata (Jeffreys, 1876)
     * Poromya trosti Strong and Hertlein, 1937
  