Above: Doto rosacea, displaying all the standard Dendronotina characteristics – large rhinophoral sheaths, branching appendages arranged down the lateral sides of the notum and feeding upon hydroids. DELVING INTO DENDRONOTINIDS If you have been reading the...
DAY/DATE Thursday 24/11/2022 SITE/S East BouldersMudjimba Island PARTICIPANTS David TYPE Subtidal MODE Boat Dive VESSEL Li’l Mischief DIVE 1 2 SITE/S East Boulders East Boulders SPECIES # 12 12 DURATION 75 Min 73 Min...
DAY/DATE Monday 17/10/2022 SITE/S North West ReefMudjimba Island PARTICIPANTS David TYPE Subtidal MODE Boat Dive VESSEL Li’l Mischief DIVE 1 SITE/S North West Reef SPECIES # 13 DURATION 68 Min DEPTH/RANGE 11 m TEMP. 22 C VIS. 8...
DAY/DATE Tuesday 04/10/2022 SITE/S La Balsa Park (Fish Cage) PARTICIPANTS Julie, Terry & David TYPE Subtidal MODE Shore Entry VESSEL – DIVE 1 SITE/S La Balsa Park (Fish Cage entry) SPECIES # 3 DURATION...
NUDIBRANCH GILL GUARDING Shell-less but not defenceless The sea is full of hungry mouths, many many hungry mouths either lying patiently in ambush or constantly on the move, in all directions, hunting for any opportunity to take a bite and feed. The last thing any...
DAY/DATE Tuesday 14/06/2022 SITE/S North West ReefMudjimba Island PARTICIPANTS Terry, David TYPE Subtidal MODE Boat Dives VESSEL Rebel II DIVE 1 2 SITE/S North West Reef North West Reef SPECIES # 6 5 DURATION 67 Min 65 Min...
THE ALLURING ARDEADORIS – Some examples of the genus Some nudibranchs are both a delight to find and undemanding to photograph. Every time I happen across a species of Ardeadoris, concerns of composition and exposure just melt away as I enjoy myself, capturing...
RUDIE NUDIES – The Mating Game Nudibranch aficionados, those individuals who spend their time searching the ocean floor for the slimy objects of their desire, will at sometime or other have come across pairs of them conjugating. Because they fertilise internally...
DAY/DATE Sunday 03/04/2022 SITE/S The WallOld Woman Island PARTICIPANTS Terry, David TYPE Subtidal MODE Boat Dives VESSEL Rebel II DIVE 1 2 SITE/S The Wall, OWI The Wall, OWI SPECIES # 21 13 DURATION 100 Min 99 Min DEPTH/RANGE 5-11 m...
DAY/DATE Wednesday 23/03/2022 SITE/S Wobby Rock & Coles Hole PARTICIPANTS Terry, David TYPE Subtidal MODE Boat Dives VESSEL Rebel II DIVE 1 2 SITE/S Wobby Rock Coles Hole SPECIES # 9 12 DURATION 81 Min 70 Min...
CERATA Part 3 – Defensive Attributes In the Aeolidina, (the aeolids) the cerata have certainly reached the apogee of development, therefore most of the discussion in this Part will pertain to that group. Defences in the aeolids are concentrated in the cerata and...
A generalized table indicating the diet of the major sea slug groups. Click the image below to view the full table (opens in a Google Sheet in a separate tab) About the table The above is just an image for navigation purposes and will not show the latest...
Thuridilla Entanglements Some observations on Thuridilla mating Recently (Feb, 2022) I captured an image of a pair of our Thuridilla cf. splendens apparently engaging in the act of hypodermic insemination (shown above). The image shows both specimens of the pair with...
Plocamopherus ceylonicus displaying the four papilla-mounted bioluminescent globes arranged around the vulnerable gill. ILLUMINATION ENLIGHTENMENT Bioluminescence in Nudibranchs Species of the humble sea slug can possess unusual and extraordinary capabilities such as...
DAY/DATE Tuesday 01/02/2022 SITE/S TrenchInner Gneerings PARTICIPANTS Terry, David TYPE Subtidal MODE Boat Dives VESSEL Rebel II DIVE 1 2 SITE/S Trench Trench SPECIES # 11 10 DURATION 71 Min 66 Min DEPTH/RANGE 15-20 m 15-20 m TEMP....
DAY/DATE Thursday 27/01/2022 SITE/S La Balsa Park PARTICIPANTS Julie, Terry & David TYPE Subtidal MODE Shore Entry VESSEL – DIVE 1 SITE/S La Balsa Park (Rotunda Entry) SPECIES # 10 DURATION 120 Min...
DAY/DATE Monday 24/01/2022 SITE/S La Balsa Park PARTICIPANTS Julie, Terry & David TYPE Subtidal MODE Shore Entry VESSEL – DIVE 1 SITE/S La Balsa Park (Toilet Block Entry) SPECIES # 17 DURATION 130 Min...
CERATA Part 2 – The Multiple Functions In Part 1, an overview of cerata was given together with some examples of what are, and what are not, considered to be cerata and which sea slug taxa possess them. A list of their diverse roles was included. Here in Part 2...
CERATA: The Multifunctional “Fingers” of Sea Slugs Part 1 – Introduction The term cerata (singular: ceras) is most often associated with the processes that arise from the dorsum of the Aeolidina – the aeolid nudibranchs. However, it is also...
DAY/DATE Saturday 18/12/2021 SITE/S La Balsa Park PARTICIPANTS Julie, Terry & David TYPE Subtidal MODE Shore Entry VESSEL – DIVE 1 SITE/S La Balsa Park (Fish Cage Entry) SPECIES # 24 DURATION 149 Min...
HUNTER SEA SLUGS Brittle Stars, Worms, Bivalves and Crustaceans as prey In this NudiNote on sea slug feeding we look at those that are hunters, those sea slugs that actively track down their mobile animal prey as opposed to the majority of sea slugs that are consumers...
DAY/DATE Friday 05/11/2021 SITE/S La Balsa Park PARTICIPANTS Terry, David TYPE Subtidal MODE Shore Entry VESSEL – DIVE 1 SITE/S La Balsa Park (Fish Cage Entry) SPECIES # 29 DURATION 162 Min ...
DAY/DATE Wednesday 27/10/2021 SITE/S The Wall Old Woman Island PARTICIPANTS Julie, Terry, David TYPE Subtidal MODE Boat Dives VESSEL Rebel II DIVE 1 2 SITE/S The Wall, OWI The Wall, OWI SPECIES # 32 36 DURATION 93 Min 86 Min...
Ceratosoma trilobatum – Ceratosoma tenue – Ceratosoma gracillimum In No. 3 of this series there are actually 3 species to compare. These 3 are quite often confused and there are good reasons for that confusion. All were described not last century but the...
VEXATIOUS VARIABILITY – No. 3 Goniobranchus splendidus Goniobranchus splendidus is a common and conspicuous species of nudibranch, though endemic to the east coast of Australia, from southern New South Wales to central Queensland. It exhibits variation in...
More Colonial Consumers Sea Slugs that graze upon Ascidians, Bryozoans and Entoprocts It’s been mentioned before that the feeding preferences of sea slugs, across the entire group, encompass an extremely diverse range of food types, but conversely, each species...
DAY/DATE Thursday 09/09/2021 SITE/S La Balsa Park PARTICIPANTS Terry, David TYPE Subtidal MODE Shore Entry VESSEL – DIVE 1 SITE/S La Balsa Park (Rotunda Entry) SPECIES # 16 DURATION 142 Min ...
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