Lampriformes
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2008-07-02T07:44:43Z
Zorrobot
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robot Modifying: [[de:Glanzfischartige]]
{{Taxobox
| name = Lampridiformes
| image = king of herrings.png
| image_width = 200px
| image_caption = [[Oarfish]]
| regnum = [[Animal]]ia
| phylum = [[Chordata]]
| classis = [[Actinopterygii]]
| ordo = '''Lampriformes'''
| subdivision_ranks = [[family (biology)|Families]]
| subdivision =
[[Turkmenidae]] ''(extinct)''<br>
[[Veliferidae]] ([[sailfin moonfish]]es)<br>
[[Lamprididae]] ([[opah]]s)<br>
[[Stylephoridae]] ([[tube-eye]]<nowiki>/</nowiki>thread-tail)<br>
[[Lophotidae]] ([[crestfish]]es)<br>
[[Radiicephalidae]] ([[tapertail]])<br>
[[Trachipteridae]] ([[ribbonfishes]])<br>
[[Regalecidae]] ([[oarfish]]es)<br>
}}
'''Lampriformes''' (also spelt '''Lampridiformes''') are an [[order (biology)|order]] of [[ray-finned fish]] that includes about 50 living species of deep sea fishes, including the [[opah]]s, [[crestfish]]es, [[ribbonfish]]es, and [[oarfish]]. These are [[acanthomorph]] [[teleost]]s which diverged at the end of the [[Cretaceous]] or in the succeeding [[Paleocene]] period, 60-70 million years ago. Their sister order is the [[Myctophiformes]].
Lampriforms have a highly variable body form, but they are usually deep-bodied or elongate. The [[premaxilla]] completely excludes the [[maxilla]] from the gape. However, the [[jaw]]s are highly protrusible, with a unique type of protrusible upper jaw. The maxilla, instead of being ligamentously attached to the [[ethmoid]] and [[Palatine bone|palatine]], slides in and out with the highly protractile premaxilla. The lampridiforms have 84-96 total [[vertebra]]e, but lack fin spines. The [[pelvic fin]]s have 0-17 rays and are placed rather far toward the front of the animal. The [[dorsal fin]]s are long, and tend to run most of the length of the body. They lack scales. The fishes are normally found at depth 100-1000 m but are [[pelagic zone|pelagic]], not bottom feeders.
== References ==
*{{FishBase_order|order=Lampriformes|year=2005|month=February}}
{{Actinopterygii}}
[[Category:Lampriformes| ]]
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