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FishBase

Order Summary for Tetraodontiformes
Main Ref.:	Nelson, J.S., 1994
Order:	Tetraodontiformes    puffers and filefishes
Class:	Actinopterygii (ray-finned fishes)
Sister Order:	Pleuronectiformes     15 M years
Ref.:	Carroll, R., 1988     Helfman, G., B. Collette and D. Facey, 1997
First fossil record:	late Tertiary       middle Miocene
Occurs in:	Marine      Freshwater      Brackish
Remarks:	No parietals, nasals, or infraorbitals, and usually no lower ribs; posttemporal, if present, simple and fused with pterotic of skull; hyomandibular and palatine firmly attached with premaxilla; scales usually modified as spines, shields, or plates; lateral line present or absent, sometimes multiple; swim bladder present except in molids; 16-30 vertebrae.
Class etymology:	Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.
Order etymology:	Greek, tetra = four + Greek, odous = teeth + Latin, forma = shape. Ref. 45335.
Families:	9 Aracanidae , Balistidae , Diodontidae , Molidae , Monacanthidae , Ostraciidae , Tetraodontidae , Triacanthidae , Triacanthodidae , Triodontidae

Identification keys | Tree of Life

Ref.:   ( e.g. 9948)
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Page created by: Eli, 17.10.00, last modified by Eli, 15.02.05.