SEA SLUGS |
AND OTHER MARINE INVERTEBRATES OF THE TWEED - BYRON COAST, AUSTRALIA. |
UPDATES
Latest additions. New species on site and better images of species already listed.
HELP NEEDED! Any feedback on species not named, and corrections to my mistakes, would be greatly appreciated.
The locations given are where I have found these species but this does not imply that these are the only places
on the coast that they can be found.---------------------------------------
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October - Not many opportunities for diving lately but hopefully that will change. Beachcombing has provided
a few interesting finds and I have also updated my Links page with a few PDF's of interest.
Physalia utriculus - Neuston - Name change - PDF
Invasive oyster - PDF
Architectonica grandiosa - Brunswick Hds beach - New images
Tetraclitella sp?- Brunswick seawall - New
Mactrotoma antecedens - Brunswick Beach - New images
Modiolus areolatus - Brunswick Beach - New images
Hemidonax dactylus - Brunswick Beach - New images
Sphaeronectes brevitruncata - Brunswick River - New
Monitilora ramsayi - Brunswick Beach - New
Species? - Hastings Point - New
Species? - Brunswick Beach - New
Species? - Brunswick Beach - New
Species? - Brunswick Beach - New
Species? - Brunswick Beach - New
Ostracod sp - Hastings Pt - New
Stichopus sp - Hastings Point - New
Species? - Hastings Point - New
Synaptid sp - Brunswick River - New
April - After a Tropical Cyclone and two intense east coast lows, the beaches and rivers here are recovering
from being battered by heavy swell and continual rain. Hastings Point also suffered heavily but should be worth a
dive after the current school holidays. I have revised my Ascidacea page, adding some new species not previously
included and naming others. Any help with identification, and corrections, is appreciated.
February - Not much new to report. A recent run of on-shore winds left a lot of cuttlebones on the beach
and, although a common occurrence here, some were in very good condition. My thanks to Dr Amanda Reid at
the Australian Museum for her help with identification.
January - After a lot of rain, the river is still not worth a dive, and the Christmas school holiday crowd
prevents parking at other spots. Just a few more weeks and they will all go away!!
October - Not much diving but hopefully I can get into the water now the school holiday crowds are
gone for a while.
September - Flat seas and low tides have enabled me to look closely at the masses of Galeolaria worm tubes on
the north seawall, and the many species that live in and around them. The tiny parasitic snail Pseudoskenella depressa
is a very interesting example.
July - Very little diving done lately, the wintery days have kept me out of the water. Old and cold!!
Still able to find some new images though.
March - After 3 La Ninas the current El Nino has been the wettest I have seen here.
Unfortunately the river is badly affected and is still not worth a dive. I have also
not been able to dive at Hastings Point since before the Christmas holidays. Nothing
on the beaches as well.
November - not a lot of opportunity to get in the water lately. A search of the
mangroves revealed large numbers of the seaslug Elysia bangtawaensis in
mudcrab holes and shallow natural drains.
August - No diving in the Brunswick River, could be soon though due to lack
of rain. A few calm, clear days at Hastings Point were very rewarding, with
some new species. Some name changes as well.
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© All images Copyright 2025 Denis Riek. All rights reserved.