Our site is currently being updated and pages are changing regularly. We thank you for your patience during this transition and hope that you find our new site easy to use.

Moreton bay bug (bay lobster)

This is a regulated species. See the size, take and possession limits for tidal waters

  • Drawing of a Moreton Bay bug
    Drawing of a Moreton Bay bug (Thenus orientalis)
Scientific name

Thenus orientalis

  • grows to a length of 28 cm and over 0.5kg
  • reddish-brown with speckling and dull yellowish tails
  • can be distinguished from the Balmain bug by the position of its eyes, which are at the outer edge of the carapace.
  • can be found throughout Queensland coastal waters, as well as in northern New South Wales and off the northern coast of Australia.
  • lives on muddy or sandy bottoms in oceanic waters to depths of up to 60 m
  • buries itself during the day and is active at night.
Size and possession limit
  • size limit: 7.5 cm minimum (across the widest part of carapace)
  • no possession limit

Further information

Last updated 06 February 2013