Northern Beaches FaunaAustralian Bush Turkey Blue Bottles By-the-wind Sailor Common Brushtail Possum Purple Shore Crab Red-tipped Crab Spider Three-bar Porcupinefish

It is sad sometimes to see what gets washed up onto a beach after an ocean storm. Pictured here from the family of porcupinefish is the Three-bar Porcupinefish (Dicotylichthys punctulatus), sometimes spelt Threebar Porcupinefish. It is a species of porcupinefish that is endemic to the east coast of Australia, often found in coastal and offshore reef environments down to 50 m deep.

Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW

This species grows to 40 cm in standard length, although most only reach 18 cm. The stranded porcupinefish pictured here was approximately 28-30 cm in length.

Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW
Three-bar Porcupinefish (Dicotylichthys punctulatus) washed up on Dee Why Beach, Northern Beaches NSW

If you wish to contribute to this topic, we certainly welcome any photographs of the beautiful Three-bar Porcupinefish. You can get in touch with us either via Facebook / Messenger, or through our Contact Us page.


  • Scientific Classification
  • Kingdom: Animalia
  • Phylum: Chordata
  • Subphylum: Vertebrata
  • Informal: Gnathostomata
  • Informal: Pisces
  • Class: Actinopterygii
  • Unranked: Euteleostei
  • Superorder: Acanthopterygii
  • Order: Tetraodontiformes
  • Family: Diodontidae
  • Genus: Dicotylichthys
  • Species: Dicotylichthys punctulatus

Footnote & References

  1. Many thanks to Sydney Dives for the ID, www.sydneydives.com / www.facebook.com/sydneydives
  2. Three-Bar Porcupinefish (Dicotylichthys Punctulatus), Sydney Dives, www.sydneydives.com/threebarporcupinefish.html
  3. Dicotylichthys punctulatus Kaup, 1855, Threebar Porcupinefish, Atlas of Living Australia, https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/e1bceb41-4d7a-466c-a556-f2af207d21b5

Northern Beaches FaunaAustralian Bush Turkey Blue Bottles By-the-wind Sailor Common Brushtail Possum Purple Shore Crab Red-tipped Crab Spider Three-bar Porcupinefish

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