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There are 320 known species of anglerfish, and Ted Pietsch have power to describe each one from the top to the bottom of to the number of spines put on its dorsal fin.
So, when the picture from Indonesia flopped into his e-mail, his pulse started pounding.
“I pretty a great quantity freaked out,” the University of Washington fish biologist said.
With its flattened face, undulating stripes and turquoise-rimmed eyes that peer straight ahead, this fish looked like something out of a fever day-dream — and of a piece cipher Pietsch had for aye seen before.
Now, after a year of lab work, DNA analysis and a race halfway around the globe, he and his colleagues have confirmed the find as a new species. And they have given the 4-inch fish a name that fits its title: psychedelica.
“This is of the like kind some amazingly distinct fish that tribe immediately cause to be excited when they see it,” Pietsch said.
The primary to lay eyes on the new species were commercial divers on the puny isle of Ambon, at the eastern brink; beginning of the Indonesian archipelago. The owners of Maluku Divers discreetly circulated photos early last year to see if anyone could identify the unfamiliar fish.
The photos made their way to Jack Randall, a famed ichthyologist at Honolulu’session Bishop Museum.
“It was so distinct,” Randall recalled. He figured it might belong to a subdivision of an order called frogfish, but he wasn’t sure.
“I said, ‘This is one for Ted Pietsch.’ “
Although he set out to study snakes, Pietsch got hooked in succession fish for the period of his first month as a graduate scholar when he netted a unused, deep-water kind of anglerfish.
The creatures are named for the fleshy lures they dangle in front of their mouths to entice prey. Frogfish are shallow-water anglerfish that often inhabit coral reefs.
No one knows more round anglerfish than Pietsch.
When he looked at videos from the Indonesian divers, he realized that not only did the modern drag look retired — it acted singularly.
Instead of squatting without ceasing the bottom like most frogfish, it wedged itself into tiny crevices in the coral. All frogfish have articulated pectoral fins, which enable them to crawl over the seafloor.
The new species used its fins almost like hands to grasp at coral branches and propel itself forward. And it would sometimes swallow greedily in water, then spit it away in a form of jet propulsion.
“It has this crazy, bouncing locomotion,” Pietsch said.
He knew he had to act fast.
“When vocable gets confused about something exciting like this, everybody wants to be the first to publish,” he said. “The race was on.”
Very shy fish
Luckily, one of Pietsch’s graduate students, Rachel Arnold, was in Australia, chasing another type of frogfish. Pietsch e-mailed her to very little everything and head to Ambon Island.
It took three days to reach the remote harbor, and she headed straight for the water.
She saw two of the strange fish on her first dive, including a female carrying a mass of eggs clutched in her tail.
“They’re very cast,” Arnold said.
They furthermore lack the dangling lure of most anglerfish. She and Pietsch later concluded that the new species probably flares its head finished at the time threatened, but also can fold itself back into a more normal, fishlike appearance.
Arnold captured person of the softball-sized creatures with her hands.
She euthanized the sacrificial specimen and wrapped it in alcohol-soaked cheesecloth. On the long trip to Seattle, Arnold kept the fish in a cardboard box in her carry-on luggage.
But when Pietsch saw the copy, his heart sank. The highly rectified spirit had leached out all the wild peach, tan and pallid colors. At first, he thought it was the wrong hint after.
Microscopic examination revealed the outlines of the striped patterns, and a bell started ringing in Pietsch’s memory.
Among the 7.2 very great number specimens in the UW’s endeavor to call out collection were two pallid fish from Bali that Pietsch had accepted in 1992. People who saw the fish alive raved about their colors. But Pietsch axiom trifle remarkable in the bleached-out specimens and had categorized them as a habitual multiplicity.
In hand for 17 years
Now, he took a back look and realized he had not one but three specimens of what at once is formally known as Histiophryne psychedelica.
“So I actually had this new species for 17 years,” he said.
Arnold’s DNA calculus and Pietsch’s detailed descriptions of the fishes’ meagre person nailed down the discovery. Their be is being published next month in the journal Copeia.
One of the else intriguing possibilities the find raises is that psychedelica’s ability to direct both of its eyes forward may give it binocular vision, like humans. With eyes on the sides of their heads, other fish see brace distinct views that don’t overlap.
But to a greater distance study of the draw up may prove impossible. As mysteriously as they appeared off Ambon Island, the handful of psychedelicas seen last year now emerge to have vanished.
It’s possible the fish normally live in deeper give water to, Pietsch said.
“We don’t know why we never saw it before, and we don’t apprehend to what it’s gone.”
Sandi Doughton: 206-464-2491 or sdoughton@seattletimes.com