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Lepisosteus
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Lepisosteus ist eine Gattung von Knochenhechten, die in vier Arten in Nord- und Mittelamerika vorkommt.
Contents
β’ Merkmale
β’ Weblinks
β’ Einzelnachweise
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Merkmale
Von den Arten der Gattung Atractosteus unterscheiden sich die Lepisosteus-Arten durch nur eine Reihe vergrΓΆΓerter FangzΓ€hne entlang der AuΓenkiefer, wΓ€hrend das Gaumenbein keine vergrΓΆΓerten ZΓ€hne trΓ€gt. Die Kiemenreusen sind kleiner und birnenfΓΆrmig, mit nur 14 bis 33 Strahlen am ersten Kiemenbogen.cite-ref-carpenter-1-0[1] Der KΓΆrperbau ist schlanker als bei Atractosteus und die Schnauze deutlich verlΓ€ngert. Auf RΓΌcken-, Schwanz- und Afterflosse weisen sie Flecken auf.cite-ref-2[2]
Systematik und Evolution
β’ Gefleckter Knochenhecht (Lepisosteus oculatus)
β’ Gemeiner Knochenhecht (Lepisosteus osseus)
β’ Kurzschnauzen-Knochenhecht (Lepisosteus platostomus)
β’ Florida-Knochenhecht (Lepisosteus platyrhincus)
Weblinks
Commons
: Lepisosteus
β Sammlung von Bildern, Videos und Audiodateien
Einzelnachweise
cite-note-carpenter-11. β The living marine resources of the Western Central Atlantic. Volume 2: Bony fishes part 1 (Acipenseridae to Grammatidae). In: K.E. Carpenter (Hrsg.): FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication. Band 5. FAO, Rom 2002, S. 676 (Volltext [PDF]).
cite-note-22. β Beschreibung der Gattungen bei der U.S. Environmental Protection Agency (englisch)