Viewing: Molluscs
May 3, 2018
Tropical Stromb found on Largs Bay Beach
Steriyoula Thethes recently posted some photos of a couple of shells from Largs Bay beach on the SA Natureteers Facebook page, as follows: – (Photos courtesy of Steriyoula Thethes) “A new species of shell, Largs bay. And the last image of a shell that is becoming more common in the same area of Largs North”, said Steriyoula. There were a... Read morePosted in Marine invertebrates, Molluscs | By Steve Reynolds
April 4, 2018
The blanket octopus, Tremoctopus violaceus
Andrew Wright, General Manager for Calypso Star Charters, recently sent us some photos of what he thought was a blanket octopus that had swum into their shark viewing cage at the North Neptune Island marine park on Good Friday. (Click on the following images to enlarge them.) The octopus that swam into the shark viewing cage (Photo courtesy of Andrew... Read morePosted in Cephalopods, Marine invertebrates, Molluscs | By Steve Reynolds
May 22, 2017
Nudibranch name change
According to the web page found at http://www.urgdiveclub.org.au/scientific-names-do-change/ , “two-part scientific names contain a hierarchy which can change if an organism is re-classified”. I wrote about this topic in my article titled “Changes to Seastar Names” at http://mlssa.org.au/2010/10/07/changes-to-seastar-names/ . It can be difficult for ‘hobbyists’ such as ourselves to keep up with the changes for projects such as our Photo... Read morePosted in Marine invertebrates, Molluscs, Nudibranchs | By Steve Reynolds
March 25, 2017
FURTHER DISCOVERIES AT THE SHIP’S GRAVEYARD
In addition to my recent discovery of an Oyster Blenny at the Ship’s Graveyard in the North Arm of the Port River, I also found this bivalve mollusc shell there: – I checked it out further when I got home. I thought that it was a Venus shell, Tapes literatus. I photographed it with my mobile phone at home and... Read morePosted in Bony fishes, Invasive species, Marine invertebrates, Molluscs | By Steve Reynolds
November 27, 2016
The Predatory Behaviour of an Eleven-armed Star Fish
During our recent dive at Rapid Bay jetties, I recorded a large eleven-armed star fish attacking an abalone. I have to admit that I set the whole thing up though. I was swimming along the side of the new jetty’s piles when I came across this abalone at the base of a jetty pile. It was attached to a small... Read morePosted in Marine invertebrates, Molluscs, Seastars | By Steve Reynolds
October 26, 2016
Bernard C. Cotton – former Curator of Molluscs at the SA Museum
Bernard C. Cotton was a Curator of Molluscs at the SA Museum in North Terrace, Adelaide, South Australia. According to “Australia’s Spectacular Cowries” by Barry Wilson and Peter Clarkson (mlssa 1069), Bernard “wrote many scientific papers and semi-technical articles on southern Australian molluscs.” According to “Kingdom of the Seashell” by R.Tucker Abbott, Bernard wrote three volumes of a South Australian... Read morePosted in Achievements, Molluscs | By Steve Reynolds
September 8, 2016
What Is CIGESMED for Divers?
In November 2013, I hosted Vasilis Gerovasileiou from Greece during his visit to South Australia. We only managed one dive together though. We managed a dive at Rapid Bay jetty on16th November 2013. Vasilis had only brought a 5mm wetsuit with him for his dives in Australia. This suit probably served him well for dives in WA & Queensland, but... Read morePosted in Citizen Science, Marine invertebrates, Molluscs, Research, sea urchins | By Steve Reynolds
June 6, 2016
Large Octopus Beach-washed at Petrel Cove
We recently received an email message reading “Howdy! I found this Octopus washed up at Petrel Cove and I can’t figure out what species it is. I estimate its leg span to be about 1.5m. Annelise Johnson” The message was accompanied by this photo of the beach-washed octopus: – Our reply to Annelise was: “Hi Annelise, That’s a beauty! The... Read morePosted in Cephalopods, Molluscs | By Steve Reynolds
February 4, 2016
Warning of hefty penalties for reef picking
That heading comes from PIRSA as part of a warning to fishers regarding rules for removing organisms from intertidal reefs in SA. Reef Watch says that it gets quite a few reports from members of the public who have observed people taking organisms off intertidal reefs. The taking of marine organisms from intertidal reefs was banned along the shore of Gulf... Read morePosted in Coastal activities, Coastal species, Conservation, Fisheries, intertidal zone, Marine invertebrates, Marine Protected Areas, Molluscs, Regulation | By Steve Reynolds
March 19, 2015
Cuttlefish of South Australia
Before I embarked on the production of the documentary film Cuttlefish Country, I had little appreciation of the diversity of cuttlefish species which are found in South Australian waters. When I discuss cuttlebones with friends or strangers, I’m usually met with surprise at the revelation that cuttlebones found in beachwash along the South Australian coast represent not one, not two but several species... Read morePosted in Cephalopods, Marine invertebrates | By Dan Monceaux