Image of Twin-spot butterfly ray
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Twin Spot Butterfly Ray

Gymnura bimaculata (Norman 1925)

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Gymnura bimaculata (Twin Spot Butterfly Ray) is a species of Myliobatiformes in the family butterfly rays. They rely on pectoral fin oscillation to move around.

  • 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 12 attributes, including:

Known occurrences, collected specimens and observations of Twin-spot butterfly ray. View this species on GBIF