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Nelson, J.S., 1994

Gadiformes cods

Teleostei

Batrachoidiformes 20 M years

Carroll, R., 1988  |  Helfman, G., B. Collette and D. Facey, 1997

middle Tertiary

海

新鮮な

汽水性の

Pelvic fins, when present, inserted below or in front of pectorals (thoracic or jugular, rarely behind in Macrouridae) with up to 11 rays; no true spines in the fins; most with long dorsal and anal fins; scales usually cycloid, rarely ctenoid; premaxilla forms the entire margin of upper jaw, protractile in some; ectopterygoid toothless; orbitosphenoid and basisphenoid absent; branchiostegal rays 6-8; posterior vertebral reduction results in posterior dorsal and anal pterygiophores exceeding the number of caudal vertebrae; swim bladder without pneumatic duct (the swim bladder is absent in Melanonus and Squalogadus).

Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.

Latin gadus = cod, 1889 + Latin, forma = shape (Ref. 45335).

( n = 17 ) -
Bathygadidae Bregmacerotidae Euclichthyidae Gadidae Gaidropsaridae Lotidae Lyconidae Macrouridae Macruronidae Melanonidae Merlucciidae Moridae Muraenolepididae Phycidae Ranicipitidae Steindachneriidae Trachyrincidae

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]