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Rhizoprionodon acutus (Fish Shark) is a species of modern sharks in the family requiem sharks. This species is extinct. They are listed as vulnerable by IUCN. They are associated with freshwater habitat. They are carnivores. Individuals could grow to 180 cm. Reproduction was viviparous and iteroparous. They rely on carcharhiniform to move around.

  • URI: http://eol.org/schema/terms/extinct
  • Definition: A taxon is Extinct when there is no reasonable doubt that the last individual has died. A \r\ntaxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, \r\nat appropriate times (diurnal, seasonal, annual), throughout its historic range have failed \r\nto record an individual. Surveys should be over a time frame appropriate to the taxon’s \r\nlife cycle and life form.
  • Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria
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  • URI: https://eol.org/schema/terms/carcharhiniform
  • Definition: Body/caudal fin propulsion, retaining eel-like body movements and exploiting interactions between the sidewash from an anterior median fin with the next posterior fin, increasing its effective angle of attack
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EOL has data for 43 attributes, including:

Known occurrences, collected specimens and observations of Fish-shark. View this species on GBIF