Biology

New "giant marine pillbug" looks like Darth Vader and tastes like lobster

New "giant marine pillbug" looks like Darth Vader and tastes like lobster
"I am your pillbug, Luke" – Bathynomus vaderi is named for the fact that its distinctive head resembles Darth Vader's flared helmet
"I am your pillbug, Luke" – Bathynomus vaderi is named for the fact that its distinctive head resembles Darth Vader's flared helmet
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"I am your pillbug, Luke" – Bathynomus vaderi is named for the fact that its distinctive head resembles Darth Vader's flared helmet
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"I am your pillbug, Luke" – Bathynomus vaderi is named for the fact that its distinctive head resembles Darth Vader's flared helmet
Dr. Conni Sidabalok examining individuals of Bathynomus vaderi at Lee Kong Chian Natural History Museum, Singapore
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Dr. Conni Sidabalok examining individuals of Bathynomus vaderi at Lee Kong Chian Natural History Museum, Singapore
Dr. Nguyen Thanh Son holding a giant specimen of another species of supergiant isopod found in Vietnam
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Dr. Nguyen Thanh Son holding a giant specimen of another species of supergiant isopod found in Vietnam 
Prof. Peter Ng examining giant isopods at a seafood market in Hanoi, October 2024
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Prof. Peter Ng examining giant isopods at a seafood market in Hanoi, October 2024
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What has 14 legs, lives at the bottom of the sea, and looks like Darth Vader? It's a newly discovered species of supergiant isopod, and should you happen to be in Vietnam sometime soon, you can buy one and eat it.

Related to the pillbugs (aka woodlice) that you might find in your backyard, supergiant isopods are marine crustaceans that are found on the deep seabed of the Atlantic, Pacific, and Indian oceans. They live at depths of up to 2,140 m (7,021 ft), grow up to 40 cm (16 inches) in length, and can tip the scales at close to 3 kg (6.6 lb).

They're also often unintentionally caught in fishing trawler nets.

Up until about seven years ago, fishermen in Vietnam would sell them as an inexpensive bycatch seafood product. Since then, however, they have come become a pricey delicacy, reportedly tasting much like lobster.

As a result, they're now purposely caught and sold alive in Vietnamese seafood markets, where they're known as bọ biển (sea bugs).

Dr. Nguyen Thanh Son holding a giant specimen of another species of supergiant isopod found in Vietnam
Dr. Nguyen Thanh Son holding a giant specimen of another species of supergiant isopod found in Vietnam 

Back in March of 2022, scientists from Hanoi University bought several supergiant isopods of the genus Bathynomus from restaurants and fishermen in Quy Nhơn City – and no, not for eating.

Because the creatures looked a bit different than other supergiants, some of them were sent to Prof. Peter Ng at the National University of Singapore's Lee Kong Chian Natural History Museum. All of the specimens were caught in the South China Sea, with the largest one measuring 27 cm long (10.6 in).

Working with Conni M. Sidabalok from the National Research and Innovation Agency Indonesia, and Nguyen Thanh Son from the Vietnam National University, Ng determined that the specimens constituted a previously unknown Bathynomus species.

Prof. Peter Ng examining giant isopods at a seafood market in Hanoi, October 2024
Prof. Peter Ng examining giant isopods at a seafood market in Hanoi, October 2024

The team named the species Bathynomus vaderi in reference to one of its most distinguishing features: a head that resembles Darth Vader's trademark flared helmet. Some of the species' other unique characteristics are described in a paper that was recently published in the journal ZooKeys.

Of course, this isn't the first time that fishermen have brought "unknown" species to our attention. In 1938, after the species had been assumed extinct for 66 million years, a coelacanth fish was found amongst a fisherman's catch off the east coast of South Africa.

Source: Pensoft Publishers

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3 comments
3 comments
Trylon
Hopefully, this "pricey delicacy" doesn't tempt fishermen to trawl deeper and deeper. The last thing this planet needs is more damage to seabeds, fisheries and species that we know almost nothing about and might well drive into extinction with our insatiable greed.
Rusty
Will be in the "hotspots" that celebs & millionaires visit for dinner shortly.
Spud Murphy
Frigging humans, they find a new amazing species and all they want to do is exploit and kill it. There are way, way, way too many humans on this planet...