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Matt Muir   cc-by-nc-sa-4.0

Rhinoptera bonasus (Cowfish) is a species of Myliobatiformes in the family Myliobatidae. They are listed as vulnerable by IUCN. Individuals can grow to 213.3 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 35 attributes, including:

Known occurrences, collected specimens and observations of Cowfish. View this species on GBIF