A new species of venomous sea snake mysteriously covered head to tail in spiny scales has been discovered in treacherous seas off northern Australia, a new study says.
Though some other sea snakes have spiky scales on their bellies, “no other [known] sea snake has this curious feature,” study leaderÂ Kanishka Ukuwela, an ecologist at the University of Adelaide, said by email.
Normally snakes have smooth scales, but each of the newly namedÂ Hydrophis donaldi’s scales has a spiny projection, he said.
“The minute the first one landed on the deck, I knew we had somethingÂ special,” study co-author Bryan Fry of the University of Queensland in Brisbane, Australia, said by email. “It was quite unlike any of the sea snakes I have seen.”
Each of the specimens was found on the rocky seafloor, a habitat that could explain the new species’ uniquely strong scales, Fry noted.
Overall, though,Â “we don’t know why this interesting feature evolved in this species, or what they are used for,” study leader Ukuwela said.
Venomous Snake Has Deadly Neighbors
The new Hydrophisâ€”literally “water serpent”â€”likely eluded notice for two reasons. The species is apparently rare, and it lives in coastal habitats largely avoided by fishers, Ukuwela said. Many Australian sea snake species live in the open ocean and are often accidentally caught in prawn trawls.
Little is known about the yellowish brown reptile, other than that it gives birth to live young and, like nearly all live-bearing sea snakes, is “venomous and potentially dangerous to humans,” according to the study, published February 21 in the journalÂ Zootaxa.
Furthermore, venom is just one obstacle to unraveling the new species’ mysteries, the University of Queensland’s Fry noted.
“Field observations are impossible, because the water is very murky andÂ filled with lots of very large bull sharks and saltwater crocodiles, inÂ addition to [highly poisonous] box jellyfish,” he said.
“If we tried to dive there, our lifeÂ expectancy would be measured in minutes. The only question is whichÂ animal would kill us.
“My money is on the bull sharks.”