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iNat·121416SpeciesAnimalia3 field observations
  1. Animals
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  4. ›Sea Stars
  5. ›Valvatacean Sea Stars
  6. ›Valvatidan Sea Stars
  7. ›Mithrodiidae
  8. ›Thromidia
Giant-arm Starfish
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Giant-arm Starfish

Thromidia gigas

Thromidia gigas is a species of starfish in the family Mithrodiidae. It was described by Ole Theodor Jensen Mortensen in 1935. It lives in the Indian Ocean off the coast of eastern South Africa and southern Madagascar. This species is probably the largest echinoderm in terms of bulk, and may exceed 13 pounds (5.9 kg).

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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Every page naming Thromidia gigas in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 121416.