Elopomorpha

Elopomorpha
	Star moray eel ( Echidna nebulosa )
Systematics
Sub-stem :	Vertebrates (vertebrata)
Superclass :	Jaw mouths (Gnathostomata)
Class :	Ray fins (Actinopterygii)
Subclass :	Neuflosser (Neopterygii)
Subclass :	Real bony fish (Teleostei)
Cohort :	Elopomorpha
Scientific name
	Elopomorpha
	Greenwood , Rosen , Weitzman & Myers , 1966

The Elopomorpha are a group of the real bony fish (Teleostei). Their common characteristic is a willow leaf-shaped larval shape, the leptocephalus larvae . In some species, the leptocephalus larvae can be up to two meters long and larger than the later adult form.

The group's monophyly is not universally recognized. Some authors consider the leptocephalus larvae to be an original characteristic that cannot be used to define a taxon . In the meantime, various groups of scientists have carried out analyzes of rRNA that provide arguments for and against the monophyly of the Elopomorpha. More research is needed.

All but the twenty species of river eels (family Anguillidae) live in the sea.

Systematics

The Elopomorpha include four orders, 24 families, 156 genera and over 850 species with the tarpon-like as the most basic order:

Elopomorpha

Elopiformes (Elopiformes)

Fishfish (Albuliformes)

	Thorn-back eels (Notacanthiformes)

	Eel-like (Anguilliformes)

The pelican eel-like ( Saccopharyngoidei) listed in Nelson and Fishbase in the rank of an order are phylogenetically clearly within the eel-like (Anguilliformes). In a recent revision of the Teleostei system , they are therefore listed as a subordination of the eel-like.

literature

Kurt Fiedler: Textbook of Special Zoology, Volume II, Part 2: Fish , Gustav Fischer Verlag, Jena, 1991, ISBN 3-334-00339-6 .
Joseph S. Nelson : Fishes of the World. 4th edition. John Wiley & Sons, Hoboken NJ et al. 2006, ISBN 0-471-25031-7 .

Individual evidence

↑ ^a ^b Jhen-Nien Chen, J. Andrés López, Sébastien Lavoué, Masaki Miya, Wei-Jen Chen: Phylogeny of the Elopomorpha (Teleostei): evidence from six nuclear and mitochondrial markers. Molecular Phylogenetics and Evolution, September 2013, doi: 10.1016 / j.ympev.2013.09.002
↑ Jun G. Inoue et al. : Deep-ocean origin of the freshwater eels. Biol. Lett. 2010 6, pages 363-366, doi : 10.1098 / rsbl.2009.0989
^ EO Wiley & G. David Johnson: in A teleost classification based on monophyletic groups. in Joseph S. Nelson, Hans-Peter Schultze & Mark VH Wilson: Origin and Phylogenetic Interrelationships of Teleosts. 2010, Verlag Dr. Friedrich Pfeil, Munich, ISBN 978-3-89937-107-9

Web links

Commons : Elopomorpha - collection of images, videos and audio files

Palæos: Elopomorpha

[Chen_et_al.-1] Jhen-Nien Chen, J. Andrés López, Sébastien Lavoué, Masaki Miya, Wei-Jen Chen: Phylogeny of the Elopomorpha (Teleostei): evidence from six nuclear and mitochondrial markers. Molecular Phylogenetics and Evolution, September 2013, doi: 10.1016 / j.ympev.2013.09.002

[2] Jun G. Inoue et al. : Deep-ocean origin of the freshwater eels. Biol. Lett. 2010 6, pages 363-366, doi : 10.1098 / rsbl.2009.0989

[3] EO Wiley & G. David Johnson: in A teleost classification based on monophyletic groups. in Joseph S. Nelson, Hans-Peter Schultze & Mark VH Wilson: Origin and Phylogenetic Interrelationships of Teleosts. 2010, Verlag Dr. Friedrich Pfeil, Munich, ISBN 978-3-89937-107-9