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Structured Inquiry Search — preview

• Home
• Kingdom Animalia
• Phylum Chordata
• Subphylum Vertebrata
• Superclass Gnathostomata
• Class Sarcopterygii
• Class Mammalia
• Subclass Theria
• Infraclass Eutheria
• Order Sirenia
• Family Trichechidae
• Genus Trichechus

• Pictures
• Specimens
• Classification

What do these icons mean? The icons tell you what features are available for that taxon.
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	Pictures
	Specimens
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Selecting an icon will take you directly to that feature.

• 
  Kingdom Animalia (animals)
  • 
    Eumetazoa (metazoans)
    • 
      Bilateria (bilaterally symmetrical animals)
      • 
        Deuterostomia (deuterostomes)
        • 
          Phylum Chordata (chordates)
          • 
            Craniata (craniates)
            • 
              Subphylum Vertebrata (vertebrates)
              • 
                Superclass Gnathostomata (jawed vertebrates)
                • 
                  Euteleostomi (bony vertebrates)
                  • 
                    Class Sarcopterygii (lobe-finned fishes and terrestrial vertebrates)
                    • 
                      Tetrapoda (tetrapods)
                      • 
                        Amniota (amniotes)
                        • 
                          Synapsida (synapsids)
                          • 
                            Class Mammalia (mammals)
                            • 
                              Subclass Theria (Therian mammals)
                              • 
                                Infraclass Eutheria (placental mammals)
                                • 
                                  Order Sirenia (dugongs, manatees, and sea cows)
                                  • 
                                    Family Trichechidae (manatees)
                                    • 
                                      Genus Trichechus (manatees)
                                      • 
                                        Species Trichechus inunguis (Amazonian manatee)
                                      • 
                                        Species Trichechus manatus (West Indian manatee)
                                      • 
                                        Species Trichechus senegalensis (African manatee)

Confused by a class within a class or an order within an order? Please see our brief essay.

Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World, Princeton University Press, copyright 2003. Used by permission.

To cite this page: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2012. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

Sponsored in part by the Interagency Education Research Initiative,
the Homeland Foundation and the University of Michigan Museum of Zoology.
This material is based upon work supported by the National Science Foundation under Grants DUE-0633095 and DRL-0628151.
The ADW Team gratefully acknowledges their support. Report Error — Comment
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