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Nudibranchs of the Sunshine Coast,
Queensland, Australia, Indo-Pacific

Pic of the Week


Under that rock magic.


Gastropteron minutum

Another nice surprise.


Searching under rocks almost always produces results. Many species of nudibranch like to hide under them so turn over the rock, search and then carefully replace it.


This species is recognised by its lumpy white body and in amounst the tubercles are a scattering of brown specks. It has a high siphon on the anterior end. On the posterior end is a curly filament. The tail has a long end that is much narrower than the front of it.


Recording this species in the river is a wonderful surprise.


Gastropteron minutum Ong & Gosliner in Ong, Hallas & Gosliner, 2017



Photo and text by Gary Cobb, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia

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Our Mission

LOCATE, RECORD, IDENTIFY and POST every species of HETEROBRANCH to be found on the Sunshine Coast Queensland, Australia.


To LOCATE through scuba diving and intertidal searching.


To RECORD by underwater and studio/taxonomic photography (including microscopy photography) of the specimens.


To IDENTIFY these species through invaluable support from qualified authorities in this field and developing reference resources.


To POST upon our web site not only images of the species and their natural history behaviour but also information concerning size abundance and localities. Additionally to disseminate to other sites information considered unusual.


Towards achieving these aims we will continue to acquire and develop the necessary equipment, resources and knowledge.


Have fun, learn and enjoy the Earth's greatest creatures!

Learn more>


Parting note.

Nudibranchs are amoung the most ephemeral of marine creatures. They greatly vary in size, colour and shape. They can be almost invisible or very bright and easy to see. Learn more>

Peak Baggers Guide





Our Latest Find

Phyllidiopsis cardinalis Bergh, 1876

50 mm - Shellacey Reef, Gneering Shoals, Mooloolaba,
Sunshine Coast, Queensland, Australia

Fran and Nevars Happy Nudibranchs

About this Nudibranch website

We embarked upon this adventure of ours while diving here on the Sunshine Coast, Queensland, Australia. Upon realizing the amazing variety of nudibranchs we were seeing, we developed an appetite for not only finding as many different species as possible but identifying and learning all we could about these most amazing creatures of the sea.
Naming Nudibranchs was born when a friend of Gary’s suggested we share our knowledge with the world. The site commenced in March 2003 when we set out on our quest to find, identify and record all of the nudibranchs here in our area. The ever changing sea and seasons give up new surprises every visit whether they are subtidal or intertidal.



Nudibranch Central

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We describe our searching and identifying component of the quest as The Treasure Hunt, and the recording thereof upon the web site as The Never Ending Story.


We welcome for inclusion on the site the findings of other workers in this area that we may not have yet recorded.


From this website a Nudibranch Identification book called Undersea Jewels - A Colour Guide to Nudibranchs was published in 2006. The book is a 'Colour Guide'. After all that is the first thing anyone remembers about first seeing a Nudibranch.



NOTE: From 2003 to 2018, content on this website was generated by Gary Cobb, David Mullins, with Terry Farr and Julie Schubert. From 2019, content has been generated by Gary Cobb.





Nudibranch webmaster Gary Cobb

All photographs and content © 2003-2021 Gary Cobb and contributing photographers.