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ECoF, Eschmeyer's Catalog of Fishes, 2023

Lepidosireniformes South American and African lungfishes

Dipneusti

Ceratodontiformes 400 M years

Helfman, G., B. Collette and D. Facey, 1997  |  Pough, F., J. Heiser and W. McFarland, 1989

early Devonian

Marine

Fresh

Brackish

Pectoral and pelvic fins filamentous, without rays; scales small; air bladder (lungs) paired; larvae with external gills; adults estivate in dry season.

Greek sark, sarx = flesh + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.

Greek, lepis, -idos = scale + Greek, seiren = siren, mermaid + Latin, forma = shape (Ref. 45335).

( n = 2 ) -

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]