Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
view in classification
Inventaire National du Patrimoine Naturel Order
BOLDS images II Order
BOLDS resource for species-level taxa Order
EOL hotlist Scratchpad Order
  • Oegopsida
Global Biotic Interactions Order
IUCN Red List Order Import
Initial Tree of Life web Import
  • Oegopsida
Integrated Taxonomic Information System (ITIS)
view in classification
BOLDS resource for higher-level taxa
NCBI Taxonomy
view in classification
NMNH Invertebrate Zoology resource Order
OBIS Environmental Information
  • Oegopsina Orbigny, 1845
OBIS depth range resource Order
Ocean Genome Resource- genomic DNA available Order
Smithsonian type specimen data Order
BOLDS resource for higher-level taxa
IUCN Structured Data Order
Tree of Life web project
  • Oegopsida Orbigny, 1845
Wikimedia Commons
Wikimedia Commons Order


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