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.

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Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
view in classification
NCBI Taxonomy
view in classification
BOLDS resource for higher-level taxa Family
BOLDS images II Family
BOLDS resource for species-level taxa Family
BioImages resource Family
Biopix Family
EOL Metrics Family
  • Ophiotrichidae
Encyclopedia of Marine Life of Britain and Ireland Resource Family
Environments Family
Global Biotic Interactions Family
Global Biotic Interactions Family Import
Integrated Taxonomic Information System (ITIS)
view in classification
Inventaire National du Patrimoine Naturel Family
Moorea Biocode
  • Ophiotrichidae
BOLDS resource for higher-level taxa
NMNH Invertebrate Zoology resource Family
NCBI, GGBN, GBIF, BHL, BOLDS data coverage Family
  • Ophiotrichidae
OBIS Environmental Information
  • Ophiotrichidae Ridley & Dendy, 1886
OBIS depth range resource Family
Ocean Genome Resource- genomic DNA available Family
Monthly ARKive text import Family
Taxonomic Hierarchy of COL-China 2012
view in classification
Undersea Production test 2 Family
World Register of Marine Species (WoRMS)
view in classification
Wikimedia Commons Family
Wikimedia Commons Family
Wikipedia Family
ZooKeys Family
iNaturalist Images Family


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

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