Gregariella
Gregariella is a genus of mussels in the family Mytilidae.
Selected species
Gregariella australis Gregariella bakeri Gregariella barbata Gregariella chenui Gregariella coarctata Gregariella coralliophaga — artist's musselGregariella denticulata Gregariella difficilis Gregariella ehrenbergi Gregariella fischeri Gregariella multistriata Gregariella nubilis Gregariella obermulleri Gregariella petagnae Gregariella semigranata Gregariella splendida- ''Gregariella vignoni''