Rapa or veined whelk (Rapana venosa)

Key features

  • Black vein-like pattern on entire shell
  • Distinctive deep orange interior
  • Large, heavy grey to red/brown shell
  • Shell has short spire
  • Up to 18 cm long


  • Intertidal to subtidal
  • Estuaries & coastal bays
  • Sandy or hard substrates


  • Predator of native shellfish & aquaculture species
  • Affects the ecology of bottom dwelling organisms

Known locations

  • Not yet in Australia

What you can do

  • Inspect & clean niche areas & antifoul your vessel regularly
  • Clean & dry equipment before transporting & using in a different location

Learn more

Read the national biofouling management guidelines for your sector.


Report immediately Outside known locations!

  • Note the exact locations
  • If possible, collect a sample and freeze in a plastic bag or take a photo
  • See www.marinepests.gov.au for your state contacts

Report a sighting

Back to the interactive pests map