Mytilidae Rafinesque, 1815
Gregariella australis (Martens, 1880)
Gregariella bakeri (Dall, Bartsch & Rehder, 1938)
Gregariella barbata (Reeve, 1858)
Gregariella barbatus (Reeve)
Gregariella chenui (Recluz, 1842)
Gregariella coarctata (Carpenter, 1857)
Gregariella coralliophaga (Gmelin, 1791)
Gregariella denticulata (Dall, 1871)
Gregariella difficilis (Deshayes in Maillard, 1863)
Gregariella ehrenbergi (Issel, 1869)
Gregariella fischeri (E.A. Smith, 1885)
Gregariella multistriata (E.A. Smith, 1872)
Gregariella nubilis (Iredale, 1937)
Gregariella obermulleri (Fischer-Piette & Nicklès, 1946)
Gregariella otteri (Iredale, 1939)
Gregariella petagnae (Scacchi, 1832)
Gregariella semigranata (Reeve, 1858)
Gregariella splendida (Reeve, 1858)
Gregariella vignoni (Petit de la Saussaye, 1862)