Order Summary for Synbranchiformes

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Order Summary for Synbranchiformes
Main Ref	:	Nelson, J.S., 1994
Order	:	Synbranchiformes spiny eels
Class	:	Teleostei
Sister Order	:	Scorpaeniformes 15 M years
Ref.	:	Carroll, R., 1988 \| Helfman, G., B. Collette and D. Facey, 1997
First Fossil Record	:	late Tertiary
Occurs in	:		Marine	Fresh	Brackish
Remark	:	Body elongate; pelvic fins absent; gill openings confined to lower half of body; ectopterygoid enlarged; mesopterygoid reduced or absent; premaxillary nonprotrusible and without ascending process. All species except three occur in freshwater.
Class etymology	:	Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.
Order etymology	:	Greek, syn = together, adhesion + Greek, brangchia = gills + Latin, forma = shape (Ref. 45335).
Families	:	( n = 4 ) Chaudhuriidae Indostomidae Mastacembelidae Synbranchidae