River Blackfish | Gadopsis marmoratus
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Greater Blue-Ringed Octopus | Hapalochlaena lunulata
“The greater blue-ringed octopus is one of several species of blue-ringed octopuses. All are thought to be venomous and for their size, they are the most deadly of all cephalopods. It is said that the venom of this octopus could kill 26 adults in just a few minutes. There is no antivenom for treatment. Fortunately, these octopuses do not attack humans. Injury typically occurs when a blue-ringed octopus is stepped on or picked up.” (Source)
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Bluespotted Ribbontail Ray | Taeniura lymma
“These foragers dig in the sand, hunting shallow sand-dwelling animals like shrimp and crabs. Unlike most rays, blue spotted ribbontail rays will rarely bury themselves completely, though they sometimes will to ambush prey or when they migrate in large groups to shallow, sandy areas.
This is a species that prefers to be left alone and are far more likely to swim away from a fight. The blue spots are meant to tell predators and other animals to stay away. If cornered they can lash out with the poisoned barb on the end of their tails, and that venom can prove fatal to many species, including humans. (Source)
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