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Octopus with 'ghostlike' looks found in Pacific

By Reuters in New York | China Daily | Updated: 2016-03-07 08:07

Scientists say the milky white creature belongs to a previously unknown species that lives in deep waters

 Octopus with 'ghostlike' looks found in Pacific

An octopus discovered at a depth of 4,290 meters. It was photographed by a remotely operated underwater craft near Necker Island of Hawaii. Noaa office of Ocean Exploration and Research Via Reuters

An underwater research craft has spotted a "ghostlike" octopus that appears to belong to a previously unknown species on the ocean floor near Hawaii, a discovery that highlights how little is known about the deep sea, a US zoologist said on Saturday.

The milky white creature, nicknamed "Casper the Friendly Ghost" by Twitter users, was caught on cameras mounted on the craft as it explored the Pacific Ocean at a depth of 4,290 meters, the National Oceanic and Atmospheric Administration said.

Describing the animal as an incirrate octopod, one of two main groupings of octopods, NOAA said it was the first time an incirrate was spotted so deep in the ocean.

"This animal was particularly unusual because it lacked the pigment cells, called chromatophores, typical of most cephalopods, and it did not seem very muscular," said Michael Vecchione, a research zoologist at NOAA's National Marine Fisheries Service. Cephalopods belong to a biological class that includes octopuses, squid and cuttlefish.

"The deep sea is so poorly known that finding new or unexpected things happens fairly often," Vecchione said in an e-mail, adding that he was excited by the images. "What is unusual is the opportunity to explore this deep."

The octopod "almost certainly" was one of a species never previously described by scientists, and it may well belong to a genus that has yet to be identified, wrote Vecchione, who is affiliated with the Smithsonian Institution in Washington.

To be certain, he said in the e-mail, scientists would need at least one specimen, and preferably several of them.

NOAA has posted a video on the website showing a pale, rounded form with expressionless eyes and languid tentacles resting on the ocean floor. Its appearance led some Twitter users to say it resembled the cartoon character Casper the Friendly Ghost.

Last week's discovery came during the first dive of the 2016 season from the Okeanos Explorer, a ship operated by NOAA that explores little-known parts of the oceans.

The remotely operated underwater vehicle Deep Discoverer came across the octopod near Necker Island, or Mokumanamana, on the northwestern end of the Hawaiian archipelago.

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