Overview News Technology Conditions of Use Privacy Policy Partners & Contributors Awards & Recognition ADW Staff Contact Us  Spinning Skulls About Mammals Frog Calls  Resources for College Instructors Resources for K-12 Instructors Contribute to ADW  What's in a Scientific Name? Authority Lists: Where We Get Our Names Name, Rank, and Serial Number Organismal classification: evolutionary relationships & ranks  Glossary Search Guide Related Links Contact Us Report an Error

Structured Inquiry Search — preview

• Home
• Kingdom Animalia
• Class Diplopoda
• Order Chordeumatida
• Family Caseyidae
• Genus Opiona

• Classification

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

• 
  Kingdom Animalia (animals)
  • 
    Eumetazoa (metazoans)
    • 
      Bilateria (bilaterally symmetrical animals)
      • 
        Protostomia (protostomes)
        • 
          Ecdysozoa
          • 
            Arthropoda
            • 
              Class Diplopoda
              • 
                Order Chordeumatida
                • 
                  Family Caseyidae
                  • 
                    Genus Opiona
                    • 
                      Species Opiona berryessae
                    • 
                      Species Opiona bifurcata
                    • 
                      Species Opiona casualis
                    • 
                      Species Opiona columbiana
                    • 
                      Species Opiona communis
                    • 
                      Species Opiona confusa
                    • 
                      Species Opiona distincta
                    • 
                      Species Opiona exigua
                    • 
                      Species Opiona facetia
                    • 
                      Species Opiona fisheri
                    • 
                      Species Opiona goedeni
                    • 
                      Species Opiona scytonotoides
                    • 
                      Species Opiona siliquae

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
©1995-2012, The Regents of the University of Michigan and its licensors.
All rights reserved.