Scientists Just Found 24 New Species in the Ocean — Including a Rare New Line of Life
A team of 16 researchers working in one of the planet’s least understood ecosystems has identified 24 species previously unknown to science, including something that almost never happens: the discovery of an entirely new superfamily.
The findings, published in a ZooKeys special issue on March 24, come from the Clarion-Clipperton Zone, a roughly 6-million-square-kilometer stretch of the central Pacific between Hawai’i and Mexico. The CCZ sits at the bottom of the deep sea, and more than 90% of its species remain unnamed.
What They Found
The creatures in question are amphipods, small crustaceans that fill ecological roles as predators and scavengers on the ocean floor. The team, led by Anna Jażdżewska and Tammy Horton during a 2024 taxonomy workshop at the University of Lodz, described 24 new species across 10 amphipod families.
The headline discovery: a new family called Mirabestiidae and a new superfamily called Mirabestioidea, along with the new genera Mirabestia and Pseudolepechinella. Finding a new superfamily is an exceptionally rare event in taxonomy. It means scientists identified an organism so distinct that existing classifications couldn’t accommodate it.
Horton said: “To find a new superfamily is incredibly exciting, and very rarely happens so this is a discovery we will all remember.”
The team also recorded the deepest known occurrences for several genera and produced first-ever molecular barcodes for some rare species, giving future researchers DNA-level tools to identify these organisms.
Why This Matters Beyond Marine Biology
This work feeds directly into two larger initiatives. The project is part of the International Seabed Authority Sustainable Seabed Knowledge Initiative and the “One Thousand Reasons” project, which aims to describe 1,000 new species by the end of the decade. At the current pace of about 25 species per year, amphipods in the eastern CCZ could be nearly fully cataloged within the next decade.
That timeline matters because the CCZ is a region under active consideration for deep-sea mining. Cataloging what lives there creates the baseline data needed to assess environmental impacts.
“Describing the species encountered during these studies is a critical step in documenting the rich biodiversity of the CCZ, enabling us to communicate effectively about the fauna,” Horton said.
Jażdżewska emphasized the collaborative approach that made the pace possible: “This was a truly collaborative process that allowed us to achieve the ambitious goal of describing more than 20 species new to science within a year – something that would not have been possible if each of us worked independently.”
Researchers from the National Oceanography Centre, the Natural History Museum in London, the Canadian Museum of Nature, NIWA, the University of Hamburg, Senckenberg, and the University Museum of Bergen all contributed.
The Names Tell Their Own Stories
The naming conventions reveal a human side to deep-sea taxonomy. Several species honor the researchers themselves: Byblis hortonae, Thrombasia ania, and Byblisoides jazdzewskae. Mirabestia maisie was named after Horton’s daughter.
One species, Lepidepecreum myla, takes its name from a video game character, described as “are just little arthropods trying to survive in total darkness.”
Then there’s Pseudolepechinella apricity, named for a word meaning the warmth of the winter sun. Horton explained the choice: “Apricity means the feeling of the warmth of the winter sun, and it is one of my favorite words. It was very apt to use during the workshop as we discussed our findings in the warmth of the February sun amid the snow of the Polish winter in Lodz. It was certainly fitting to also use it for one of our amphipod discoveries.”
Jażdżewska said the team’s findings “provide information that is crucial for future conservation and policy decisions, and it highlights how important it is for this work to continue.”
With 90% of CCZ species still waiting for names, the work is far from finished.
This article was created by content specialists using various tools, including AI.
