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Osmeriformes

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Osmeriformes

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Osmeriformes
Rainbow Smelt, Osmerus mordax
 
Rainbow Smelt, Osmerus mordax
Scientific classification
Kingdom: Animalia
 
Phylum: Chordata
 
Class: Actinopterygii
 
Order: Osmeriformes
 
Suborders
Argentinoidei
Osmeroidei

See text for families.

Osmeriformes is an order of ray-finned fish that includes various kinds of smelts, noodlefishes, and the odd-looking barreleyes. The order consists of fourteen families with about 240 species total.

Characteristics of the order include the maxilla in the gape of the mouth, radii absent from the scales, and loss of the basisphenoid and orbitosphenoid bones. Almost all osmeriforms spawn in fresh water, but many are anadromous and found in temperate oceans worldwide.

The Argentinoidei are characterized by the presence of a crumenal organ, consisting of additional cartilage and gill rakers on the 5th ceratobranchial, while the Osmeroidea are notable for having their eggs surrounded by an adhesive membrane. Some classifications split the Argentinoidei genera Holtbyrnia, Maulsia, and Pellisolus out of the Platytroctidae family and into their own family called Searsiidae.

Classification

  • Suborder Argentinoidei
    • Superfamily Alepocephaloidea
      • Alepocephalidae (slickheads)
        Leptochilichthyidae
        Platytroctidae
    • Superfamily Argentinoidea
      • Argentinidae (herring smelts)
        Bathylagidae (deep-sea smelts)
        Microstomatidae
        Opisthoproctidae (barreleyes)
  • Suborder Osmeroidei
    • Superfamily Galaxoidea
      • Galaxiidae
        Lepidogalaxiidae (salamanderfishes)
        Retropinnidae (New Zealand smelts)
    • Superfamily Osmeroidea
      • Osmeridae (smelts)
        Plecoglossidae (ayu fishes)
        Salangidae (noodlefishes)

References

  • "Osmeriformes". FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
  • Osmeriformes (TSN 553133). Integrated Taxonomic Information System.
  • J. S. Nelson, Fishes of the World

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This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.


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