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Rhizoprionodon acutus (Fish Shark) is a species of modern sharks in the family requiem sharks. This species is extinct. They were associated with freshwater habitat. They were carnivores. Individuals could grow to 180 cm. Reproduction was viviparous, iteroparous, and dioecious.

  • 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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EOL has data for 43 attributes, including:

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