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Order Summary for Salmoniformes
Main Ref.:	Nelson, J.S., 1994
Order:	Salmoniformes    salmons
Class:	Actinopterygii (ray-finned fishes)
Sister Order:	Esociformes     110 M years
Ref.:	Carroll, R., 1988     Colbert, E. and M. Morales, 1991
First fossil record:	middle Cretaceous
Occurs in:	Marine      Freshwater      Brackish
Remarks:	Deep posterior myodome with eye musculature passing through and attaching to trunk muscles; adipose fin present; mesocoracoid present; gill membranes extending far forward, free from isthmus; pelvic axillary process present; last three vertebrae turned up; 11-210 pyloric caeca; 7-20 branchiostegal rays; vertebrae 50-75; tetraploid karyotype; parr marks in young of most species. Maximum length up to 1.5 m. This order has high value in sport and commercial fisheries.
Class etymology:	Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.
Order etymology:	Latin, salmo = salmon, 1884 + Latin, forma = shape. Ref. 45335.
Families:	1 Salmonidae

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