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Image of California Butterfly Ray
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California Butterfly Ray

Gymnura marmorata (Cooper 1864)

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Gymnura marmorata (California Butterfly Ray) is a species of Myliobatiformes in the family butterfly rays. They are listed as near threatened by IUCN. Individuals can grow to 100 cm. They rely on pectoral fin oscillation to move around.

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  • URI: https://eol.org/schema/terms/pectoral_oscillation
  • Definition: a type of pectoral-fin-based swimming, also known as mobuliform locomotion. Lower frequency than fin undulation; can be described as the production of less than half a wave on the fin, similar to a bird wing flapping. Pelagic stingrays use oscillatory locomotion.
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EOL has data for 17 attributes, including:

Known occurrences, collected specimens and observations of California Butterfly Ray. View this species on GBIF