12-Teleost2 - + Early Teleosts: Osteoglossomorpha to Lec...

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Click to edit Master subtitle style9/14/10+Early Teleosts: Osteoglossomorpha to Lec -12: Chapter 14 DOF
9/14/10+Field PicsTebowfin: The most endangered fish in Louisiana
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9/14/10+MidtermnSo what did you guys think?
Click to edit Master subtitle style9/14/10+Early Teleosts: Osteoglossomorpha to Lec -12: Chapter 14 DOF
9/14/10+Teleosts Questions
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9/14/10+Sudden appearance of major lineages
9/14/10+Modern Teleosts Arose In 4 Major RadiationsnOsteoglossomorpha (Bony tongues) - JurassicnElopomorpha (Tarpons and true eels) - JurassicnOtocephala (=Ostarioclupeomorphs – herring and minnow relatives) - JurassicnEuteleostei (by far the largest of the 4 subdivisions) – Upper Cretaceous, Paleogene
9/14/10+Osteoglossomorpha (Teleostei)nBony tongues – generally considered the most “primitive” living teletosts; they are the sister group to all others
9/14/10+Bony toungues(Teleostei:Osteoglossomorpha)nOccur in freshwater on North America, South America, and Asia but most species found in Africa.nHIODONTIDAE (2 spp.) – Mooneye, GoldeneyenOSTEOGLOSSIDAE (7spp.) – Bony tounguesnMORMYRIDAE (200 spp.) – Elephant FishesnNOTOPTERIDAE (8 spp.) – Old World Knifefishes
9/14/10+Bony toungues(Teleostei:Osteoglossomorpha)nOccur in freshwater on North America, South America, and Asia but most species found in Africa.nHIODONTIDAE (2 spp.)nOSTEOGLOSSIDAE (7spp.)nMORMYRIDAE (200 spp.)nNOTOPTERIDAE (8 spp.)
9/14/10+Bony tongues(Teleostei:Osteoglossomorpha)nChiefly tropical, but two species (the mooneye, Hiodontergisusand the Goldeneye, H. alosoides) occur in major rivers systems of North America. Fossil
9/14/10+Family Hiodontidae: 2 spp. (Teleostei:Osteoglossomorpha)
9/14/10+Family Hiodontidae: 2 spp. (Teleostei:Osteoglossomorpha)nHiodontergisusand H. alosoidesnReproduction – reach sexual maturity after 3 years. Pelagic spawn in backwater areas, eggs are translucent and neutrally buoyant.nGolden color of eye in both species from tapetumlucidum that increases their ability to see in low lights
9/14/10+Bony tongues(Teleostei:Osteoglossomorpha)nHIODONTIDAE (2 spp.)nOSTEOGLOSSIDAE (7spp.)nMORMYRIDAE (200 spp.)nNOTOPTERIDAE (8 spp.)
9/14/10+Osteoglossidae(Teleostei:Osteoglossomorpha)nSeven spp. ; Gondwanan distributionnS.America, Africa, S.E. Asia, Australia
9/14/10+OsteoglossumnOsteoglossumnnSilvery arowana (Osteoglossom) has 2 chin barbels, large angled mouth to catch prey that fall in the waternJumping play at 1:35n?v=3QT5fpFi1mw&feature=player_embedded#
9/14/10+Bony toungues: Arapaima(Teleostei:Osteoglossomorpha)nInclude some of the world’s largest freshwater fishes - Arapaima (Pirarucu; Arapaima gigas) of South America – reaching 2.5 m = over 8 feetnA piscivore

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Term
Fall
Professor
Chakrabarty
Tags
Ichthyology, EEL, Teleostei, spiny eels, Elopomorpha, Subdivision Elopomorpha Order

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