Gregariella

Gregariella is a genus of mussels in the family Mytilidae.

==Selected species== Gregariella australis (E. von Martens, 1879) Gregariella bakeri (Dall, Bartsch & Rehder, 1938) Gregariella barbata (Reeve, 1858) Gregariella chenui (Récluz, 1842) Gregariella coarctata (Carpenter, 1857) Gregariella coralliophaga (Gmelin, 1791) — artist's mussel Gregariella denticulata (Dall, 1871) Gregariella difficilis (Deshayes, 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 petagnae (Scacchi, 1832) Gregariella semigranata (Reeve, 1858) Gregariella splendida (Reeve, 1858) Gregariella vignoni (Petit de la Saussaye, 1862)