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
Genus Import
Animal Diversity Web Descriptions Genus
AquaMaps Resource Genus
BOLDS resource for higher-level taxa Genus
BOLDS images II Genus
BOLDS resource for species-level taxa Genus
view in classification
view in classification
FishWisePro resource Genus
Global Biotic Interactions Genus
Global Biotic Interactions Genus
IABIN resource Genus
IUCN Red List Genus
IUCN Red List
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AnAge database Genus Import Genus
Integrated Taxonomic Information System (ITIS)
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MCZ resource Genus
NCBI Taxonomy
view in classification
OBIS Environmental Information
  • Semicossyphus
OBIS depth range resource Genus
Ocean Genome Resource- genomic DNA available Genus
Paleobiology Database
view in classification
STRI Neotropical Fishes Genus
Monthly ARKive text import Genus
Undersea Production test 2 Genus
Wikimedia Commons Genus
Wikipedia Genus
iNaturalist Images Genus


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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