[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
       Order Scorpaeniformes Bloch, 1789 - mail-cheeked fishes
         Family Triglidae Rafinesque, 1815 - searobins
           Genus Chelidonichthys Kaup, 1872
             1 Chelidonichthys cuculus (C. Linnaeus, 1758) - red gurnard see Aspitrigla cuculus (C. Linnaeus, 1758)
             2 Chelidonichthys gurnardus (C. Linnaeus, 1758) - grey gurnard see Eutrigla gurnardus (C. Linnaeus, 1758)
             3 Chelidonichthys lastoviza (Bonnaterre, 1788) - streaked gurnard
             4 Chelidonichthys lucerna (C. Linnaeus, 1758) - searobin
             5 Chelidonichthys obscurus (Bloch & Schneider, 1801) - longfin gurnard