Tag: new species

New species, old threats: two hillstream suck-loaches discovered in China

The new-to-science fish face an uncertain future due to pollution and unsustainable harvesting.

All too often, researchers discover new species only to learn they are already at risk of extinction.

So when researchers from Shanghai Ocean University and Yunnan Agricultural University identified two new species from the upper Pearl River system in southwest China, they were likely unsurprised to find the fish facing major threats from pollution and overharvesting.

Three views of a flat-bottomed fish species with bumps on its head.
Beaufortia granulopinna holotype from Lizhou River, a stream tributary of Bo′ai River of the Pearl River basin, at Tianlin County, Guangxi Province, China.

The new species, Beaufortia granulopinna and Beaufortia viridis, are members of the family Gastromyzontidae, also known as hillstream suck-loaches. They are highly specialised, with compressed bodies, flattened bottoms, and greatly expanded paired fins forming suction cup-like structures. These adaptations enable them to adhere to rocky substrates, resisting currents while feeding on algae and invertebrates.

Researchers discovered the new species during surveys studying aquatic life in various waterways in Yunnan and Guangxi between 2022 and 2024. The study, led by Jing-Chen Chen, offers new insights into the taxonomy and molecular phylogeny of the Beaufortia pingi species group, of which the two discoveries are likely members.

Three views of a flat-bottomed fish species witha green and brown colouration.
Beaufortia viridis holotype from Wuming River, a stream tributary to the You River of the Pearl River basin, at Wuming District, Nanning City, Guangxi Province, China.

Although research on the Beaufortia pingi group is mostly in its initial stages, the situation is far from optimistic. These species have become popular ornamental fish in China, and aquarium trade operators reap substantial profits through their capture and sale. Among them are those who act with disregard for sustainability, using destructive harvesting practices.

Given the loaches’ preference for fast-flowing water, projects that obstruct rivers can easily lead to regional extinction. Their low pollution tolerance and sensitivity to changes in water quality also contribute to the significant reductions in population that many species are suffering.

Landscape image of a river and trees.
Collection site of Beaufortia viridis from Wuming River, a stream tributary to the You River of the Pearl River basin, Wuming District, Nanning City, Guangxi Province, China. Photographed by Jing-Chen Chen.

In the habitat of B. viridis, Wuming District, Nanning City, most small tributaries have been modified into step-like reservoirs for water storage, and those near agricultural irrigation areas are polluted, rendering these areas unsuitable for their survival. Interestingly, however, a stable population was discovered inside a commercial eco-camping site left untouched to satisfy consumers’ pursuit of “pristine nature.”

The researchers suggest that future efforts should focus on increasing attention to these species, conducting fundamental research, and further exploring their scientific and economic potential. Simultaneously, it is crucial to enhance habitat conservation awareness, scientifically plan, and develop sustainably, ensuring harmonious coexistence between humans and nature.

Original source

Chen J-C, Li J-J, Tang W-Q, Pu X-R, Lei H-T (2024) Taxonomic resolution of the hillstream suck-loach Beaufortia pingi species group (Cypriniformes, Gastromyzontidae) and two new species from Southwest China– Beaufortia granulopinna and Beaufortia viridis. Zoosystematics and Evolution 100(3): 941-963. https://doi.org/10.3897/zse.100.124370

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Top-lane crab: new species named after League of Legends character

The ‘furry’ crustacean is the latest discovery to be given a video-game-inspired name.

Species of the crab family Xanthidae go by many names: gorilla crabs, mud crabs, pebble crabs, rubble crabs – the list goes on. But when it was time to name a tiny, ‘furry’ new species from China, researchers drew unlikely inspiration from the video game League of Legends.

Gothus teemo was named after the character Teemo from the immensely popular MOBA (Multiplayer Online Battle Arena) thanks to its distinctive appearance.

Two images of a small white-and-brown crab species besides Teemo from League of Legends.
Gothus teemo male holotype (left), Teemo (right).

Loosely resembling a raccoon, Teemo is small and fluffy with a brown and white intermingled fur coat. The new species’ small size, densely covered short setae (bristles), and brown-striped colouration quickly drew comparisons.

Published in the open-access journal Zoosystematics and Evolution, the discovery was made during an expedition to the coral reefs of the South China Sea. There researchers discovered the new species in the Xisha Islands (Paracel Islands) and Nansha Islands (Spratly Islands).

An illustration of the crab species Gothus teemo. It is black with brown patterning.
Illustration of Gothus teemo by by Fei Gao.

The team collected specimens while scuba diving, photographing them and conserving them for further study. The specimens are now housed at the Marine Biological Museum, Chinese Academy of Sciences in Qingdao, China.

This new-to-science crab represents not only a new species, but also an entirely new genus. Sticking to a theme, researchers named the genus after a game – albeit one created 2,500 years before League of Legends!

The boardgame Go. Black and white counters on a a wooden box with a grid pattern.
The ancient Chinese board game, Go.

They chose the name Gothus for the genus, drawing inspiration from the ancient Chinese strategy board game, Go. The name alludes to the intermingled black and white patterns on the carapace of Gothus species, beneath which lie circular granules resembling the pieces of the game.

As part of their study, the researchers suggested the reclassification of the species Actaea consobrina into the genus Gothus. This reclassification was based on both morphological and molecular evidence.

A white crab with balck and orange dots.
Actaea consobrina, proposed as Gothus consobrina.

Gothus teemo is by no means the only new species named after a video game character. Just last week, we shared a story from our Biodiversity Data Journal about a blind spider named after the Monster Hunter character Khezu – check out the story below!

Monster Hunter in real life: eyeless spider named after video game monstrosity

Gothus teemo is yet another reminder that countless unknown creatures are just waiting to be discovered. The coral reefs of the South China Sea continue to be a rich source of new and fascinating species. And, who knows, perhaps there’s a Gothus tristana out there, too.

Original source

Yuan Z-M, Jiang W, Sha Z-L (2024) Morphological and molecular evidence for Gothus teemo gen. et sp. nov., a new xanthid crab (Crustacea, Brachyura, Xanthoidea) from coral reefs in the South China Sea, with a review of the taxonomy of Actaeodes consobrinus (A. Milne-Edwards, 1867). Zoosystematics and Evolution 100(3): 965-987. https://doi.org/10.3897/zse.100.117859

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Monster Hunter in real life: eyeless spider named after video game monstrosity

Discovered in China, the cave-dwelling arachnid was assigned a rather unflattering species name.

Deep within a cave in the Du’an Yao Autonomous County of Guangxi, China, researchers discovered a pale, eyeless spider unknown to science.

This discovery, detailed in the open-access Biodiversity Data Journal adds a remarkable member to the Otacilia genus. And, as is often the case, the scientist behind the revelation turned to popular culture to name the new species.

They settled on Otacilia khezu.

A close-up shot of the face Khezu from Monster Hunter at night. It is a wwyvern with no eyes and many teeth.
Khezu in Monster Hunter.

The Khezu wyvern features in the popular video game series Monster Hunter. It is known for its blindness and unsettling appearance, just like newly discovered species. By naming the spider Otacilia khezu, the researchers highlight its troglobitic – or cave-dwelling – nature, particularly the complete absence of its eyes.

“Its long, elastic neck stretching out while it clings to a wall or the ceiling is a sight straight out of a nightmare. Make sure you do not get overwhelmed by its horrific appearance.”

Khezu description, Monster Hunter Wiki.

Otacilia khezu, like many troglobitic creatures, lacks eyes and pigmentation, has elongated appendages, and has developed heightened sensory adaptations to navigate and thrive in its dark environment.

A pale eyeless spider on a cave floor.
Otacilia khezu juvenile, in life. Photo: Shanmi Zheng.

The research team led by Yejie Li,  Langfang Normal University, note the significance of the discovery, as it marks the first recorded troglobitic Otacilia species in China. Prior to this, only two troglobitic Otacilia species had been identified, both in Laos. 

The species is one of many spiders named after influential fictional characters. In fact, one spider was named after a character and the actor playing him.

The Venom Spider: new genus named after Tom Hardy’s Marvel character

The documentation and publication of this new species set the stage for further studies on the ecological roles of troglobitic spiders and their evolutionary adaptations.

Chinese civillians can rest assured that Otacilia khezu is considerably less dangerous than its namesake when they keep an eye out for the eyeless arachnid.

Original source:

Lin Y, Chen H, Wang X, Li S (2024) Otacilia khezu sp. nov., a new troglobitic spider (Araneae, Phrurolithidae) from Guangxi, China. Biodiversity Data Journal 12: e126716. https://doi.org/10.3897/BDJ.12.e126716

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Cute but deadly: a new velvet worm species from Ecuador

The so-called “living fossil” shoots a sticky substance from a pair of glands to trap its prey.

Researchers have described a remarkable new species of velvet worm from the Ecuadorian Amazon.

Take a look below:

Oroperipatus tiputini.
Credit: Roberto J. León, Archive Universidad San Francisco de Quito USFQ.

While the Tiputini velvet worm (Oroperipatus tiputini) may look friendly, it is an accomplished hunter that shoots a sticky substance from a pair of glands to trap its prey.

However, lead author Jorge Montalvo from the USFQ Museum of Zoology, notes that the species also has a softer side, with the mother taking care of her considerably lighter-coloured young after they are born.

Adult female velvet worm with her offspring on a leaf.
Adult female with her offspring.

Velvet worms, also known as onychophorans or peripatus, are rare and unique invertebrates often referred to as “living fossils” because they evolved over 500 million years ago, long before the appearance of dinosaurs.

Currently, only about 240 velvet worm species are known, inhabiting tropical regions in the Americas, southern Chile, Africa, Southeast Asia, Oceania, and New Zealand.

Adult velvet worm on a leaf.
Oroperipatus tiputini.
Pedro Peñaherrera-R., Archive Universidad San Francisco de Quito USFQ

Published in the open-access journal Zoosystematics and Evolution, the discovery was more than 20 years in the making. It also represented the first study of Ecuadorian velvet worms for over 100 years.

“The research on this new species took several decades. I discovered the first individual of this new species in 2001, and we finally managed to describe it as part of Jorge Montalvo’s graduation thesis, who is now my colleague at the Museum of Zoology at USFQ. To complete the description, we used not only macromorphological descriptions but also high-magnification images obtained with a scanning electron microscope.”

Diego F. Cisneros-Heredia, one of the authors and director of the USFQ Museum of Zoology, Ecuador.

The researchers named the species after the Tiputini Biodiversity Station (TBS), part of the Yasuní Biosphere Reserve. The name recognises the hard work of the station’s management, research, and field team in protecting biodiversity.

Map of Ecuador showing the location of the Tiputini Biodiversity Station.
Map of Ecuador showing the location of the Tiputini Biodiversity Station (white square), type locality of Oroperipatus tiputini sp. nov., in the Amazonian lowlands.

The description of the Tiputini velvet worm raises the total number of described velvet worm species in Ecuador to seven. This species is the first from the Ecuadorian Amazon lowlands and the third in the western Amazon.

Original source

Montalvo-Salazar JL, Bejarano ML, Valarezo A, Cisneros-Heredia DF (2024) A new species of velvet worm of the genus Oroperipatus (Onychophora, Peripatidae) from western Amazonia. Zoosystematics and Evolution 100(3): 779-789. https://doi.org/10.3897/zse.100.117952

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Lazy predator: A new species of mountain pit viper from China

Ovophis jenkinsi is dark brownish-grey, with trapezoidal patches on its back. It is endemic to China’s Yingjiang County and is not difficult to find in the wild.

Yunnan, China is a biodiversity hotspot, with many new reptile species discovered in the region in recent years. It is also where a research team from China found a new species of medium-sized venomous snake, known as a mountain pit viper.

Ovophis jenkinsi. Photo by Xianchun Qiu

“We checked specimens of the [snake] genus Ovophis collected by Institute of Zoology, Chinese Academy of Sciences and Beijing Forestry University in Yingjiang, Yunnan in 2008, and found that these specimens were different from all known similar species. We collected some new specimens from Yingjiang in 2023 and finally determined that this population represents a new species!” the researchers explained.

The new species was named Ovophis jenkinsi in honour of herpetologist Robert “Hank” William Garfield Jenkins AM (September 1947−September 2023), who had “a passion for snakes, especially pit vipers, and helped China, along with many Asian countries, complete snake census, conservation, and management projects,” the team writes in their study, which was published in the open-access journal ZooKeys.

A specimen of Ovophis jenkinsi from Yingjiang, Yunnan, China. Photo by Xianchun Qiu

Ovophis jenkinsi is generally dark brownish-grey, but some individuals can be deep orange-brown, and has trapezoidal patches on its back. “It is usually slow-moving but shows great aggression when disturbed,” the researchers explain after observing the snake’s behaviour. “When threatened, these snakes inflate their bodies to make themselves appear larger and strike quickly.”

There are no records to date of humans being bitten by this species.

The only known habitat of Ovophis jenkinsi, the tropical montane rainforest in Yingjiang, Yunnan, China. Photo by Xiaojun Gu

Like many other species, this snake is endemic to China’s Yingjiang County, which means it is currently found only there. “It is not difficult to find this species in the wild, they are active mainly in the autumn and prefer cool, humid, and even rainy nights, probably to avoid competition with other snakes,” the researchers say, suggesting it might feed on small mammals.

“We will be collecting more information about O. jenkinsi in the future, including their appearance, distribution, and habits, to improve our understanding of this species,” the researchers say in conclusion.

Research article:

Qiu X-C, Wang J-Z, Xia Z-Y, Jiang Z-W, Zeng Y, Wang N, Li P-P, Shi J-S (2024) A new mountain pitviper of the genus Ovophis Burger in Hoge & Romano-Hoge, 1981 (Serpentes, Viperidae) from Yunnan, China. ZooKeys 1203: 173-187. https://doi.org/10.3897/zookeys.1203.119218

Pensoft launches official Weibo account to expand global reach

Sun-shunning thief: new plant species robs underground fungi to survive

Tiny and highly specialised, Thismia malayana belongs to a group of plants known as mycoheterotrophs.

Researchers in Malaysia have discovered a tiny and distinctive plant that steals its nutrients from underground fungi.

Published as a new species in the open-access journal PhytoKeys, Thismia malayana belongs to a group of plants known as mycoheterotrophs. Unlike most plants, mycoheterotrophs do not perform photosynthesis. Instead, they act as a parasite, stealing carbon resources from the fungi on their roots.

Unusual brown and orange plant in leaf litter.
Thismia malayana live specimen.

The 2 cm-long plant’s unusual adaptation takes advantage of the mycorrhizal symbiosis, which is usually a mutually beneficial relationship between colonising fungi and a plant’s root system.

Several scientific photographs of an unusual brown and orange plant.
Thismia malayana.

By stealing nutrients from fungi, it can thrive in the low-light conditions of dense forest understories where its highly specialised flowers are pollinated by fungus gnats and other small insects.

A team of botanists from the Forest Research Institute Malaysia (FRIM) collaborated with local naturalists and stakeholders to make the discovery in the tropical rainforests of Peninsular Malaysia. It was there they found the miniscule species hidden amongst leaf litter and growing near tree roots and old rotten logs.

The research team identified Thismia malayana in two locations: the lowlands of Gunung Angsi Forest Reserve in Negeri Sembilan and the hilly dipterocarp forests of Gunung Benom in the Tengku Hassanal Wildlife Reserve, Pahang.

Unusual brown and orange plant with a scale showing it measures around 2 cm long.
Thismia malayana with scales (the finest grade is 0.5 mm).

Despite its small size, Thismia malayana is very sensitive to environmental changes and has been classified as Vulnerable according to the IUCN Red List criteria. Its limited distribution and the potential threat from trampling due to its proximity to hiking trails underscore the importance of continued conservation efforts.

Original source

Siti-Munirah MY, Hardy-Adrian C, Mohamad-Shafiq S, Irwan-Syah Z, Hamidi AH (2024) Thismia malayana (Thismiaceae), a new mycoheterotrophic species from Peninsular Malaysia. PhytoKeys 242: 229-239. https://doi.org/10.3897/phytokeys.242.120967

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Captivating blue-colored ant discovered in India’s remote Siang Valley

It was named Paraparatrechina neela, after the word “neela”, which means blue in various Indian languages.

Nothing like the common red, black, or brown ants, a stunning blue ant has been discovered from Yingku village in Arunachal Pradesh, northeastern India. This new species belongs to the rare genus Paraparatrechina and has been named Paraparatrechina neela. The word “neela” signifies the color blue in most Indian languages – a fitting tribute to the ant’s unique coloration.

Entomologists Dr. Priyadarsanan Dharma Rajan and Sahanashree R, from Ashoka Trust for Research in Ecology and the Environment (ATREE) in Bengaluru, along with Aswaj Punnath from the University of Florida, collaborated to describe the remarkable new species. Their scientific description of the ant is published in the open-access journal ZooKeys.

Paraparatrechina neela. Photo by Sahanashree R

“While exploring a tree hole about 10 feet up in a steep cattle track in the remote Yinku village one evening, something sparkled in the twilight. With the dim light available, two insects were sucked into an aspirator. To our surprise, we later found they were ants” said the researchers.

The ant was found during an expedition to Siang valley in Arunachal Pradesh to resurvey its biodiversity after the century-old ‘Abhor expedition’. The original Abor expedition from the period of colonial rule in India was a punitive military expedition against the indigenous people there in 1911-1912. A scientific team also accompanied the military expedition, to document the natural history and geography of the Siang Valley. Тhis expedition encountered several challenges, including hostile terrain, difficult weather conditions, and resistance from local tribes. Despite the challenges, it managed to explore and map large parts of the Siang Valley region, cataloguing every plant, frog, lizard, fish, bird & mammal and insects they found, with the discoveries published in several volumes from 1912 to 1922 in the Records of the Indian Museum.

A view of Suabg Valley. Photo by Ranjith AP

Now, a century later, a team of researchers  from ATREE and a documentation team from Felis Creations Bangalore have embarked on a series of expeditions under the banner “Siang Expedition”, to resurvey and document the biodiver­sity of the region. This expedition was funded by the National Geographic Society through the wild­life-conservation expedition grant.

“Nestled within a Himalayan biodiversity hotspot, Arunachal Pradesh’s Siang Valley presents a world of unparalleled diversity, much of it yet to be explored. However, this very richness, both cultural and ecological, faces unprecedented threats. Large-scale infrastructure projects like dams, highways, and military installations, along with climate change, are rapidly altering the valley. The impact extends beyond the valley itself, as these mountains play a critical role not only in sustaining their own diverse ecosystems but also in ensuring the well-being of millions of people living downstream”, said Priyadarsanan Dharma Rajan, corresponding author of the paper.

Paraparatrechina neela is a small ant with a total length of less than 2mm. Its body is predominantly metallic blue, except for the antennae, mandibles, and legs. The head is subtriangular with large eyes, and has a triangular mouthpart (mandible) featuring five teeth. This species has a distinct metallic blue colour that is different from any other species in its genus.

Paraparatrechina neela. Photo by Sahanashree R

Blue is relatively rare in the animal kingdom. Various groups of vertebrates, including fish, frogs, and birds, as well as invertebrates such as spiders and flies and wasps, showcase blue coloration. In insects, it is often produced by the arrangement of biological photonic nanostructures, which create structural colours rather than being caused by pigments. While blue coloration is commonly observed in some insects like butterflies, beetles, bees, and wasps, it is relatively rare in ants. Out of the 16,724 known species and subspecies of ants worldwide, only a few exhibit blue coloration or iridescence.

Jewel of the forest: New electric blue tarantula species discovered in Thailand

The discovery of Paraparatrechina neela contributes to the richness of ant diversity and represents the unique biodiversity of the Eastern Himalayas, and its blue coloration raises intriguing questions. Does it help in communication, camouflage, or other ecological interactions? Delving into the evolution of this conspicuous coloration and its connections to elevation and the biology of Paraparatrechina neela presents an exciting avenue for research.

Research article:
Sahanashree R, Punnath A, Rajan Priyadarsanan D (2024) A remarkable new species of Paraparatrechina Donisthorpe (1947) (Hymenoptera, Formicidae, Formicinae) from the Eastern Himalayas, India. ZooKeys 1203: 159-172. https://doi.org/10.3897/zookeys.1203.114168

Snake in a ski mask: a striking new species from the Arabian Peninsula

The stylish serpent is dubbed “the missing piece of the puzzle” as it fills a large distribution gap for its genus.

Researchers have discovered a new distinctive and secretive snake species in the Hejaz region of Saudi Arabia.

Rhynchocalamus hejazicus is a small snake bearing a black collar and reddish colouration. A completely black variation of of the species known as a ‘melanistic morphotype’ was also discovered.

A black snake on stony ground.
Melanistic morphotype of Rhynchocalamus hejazicus.

The snake’s genus Rhynchocalamus previously had a large distribution gap, stretching between the Levant and coastal regions of Yemen and Oman. However, the new species is widely distributed between these areas, prompting the research team to dub it “the missing piece of the puzzle.”

Distribution map of the new species showing the location of the material examined in this study. Various areas in western Saudi Arabia are marked.
Distribution of Rhynchocalamus hejazicus, showing the location of the material examined in the study.

The international team led by scientists from the Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), Portugal, and Charles University, Czech Republic, published their discovery in Zoosystematics and Evolution, an open-access journal published by Pensoft on behalf of Museum für Naturkunde Berlin.

Rhynchocalamus hejazicus inhabits sandy and stony soils with varying vegetation cover and is found in habitats disturbed by humans, suggesting the species should not be categorised as threatened according to IUCN criteria.

Three images of habitats. The first is a barren desert landscape with sparse trees and rocks scattered throughout. The second is a dry desert scene featuring a small number of trees and rocks. The third is an arid landscape with a handful of trees and rocks in view.
Habitats of the holotype and two paratype specimens of R. hejazicus.

The species’ natural history and behaviour remain unclear, and further monitoring and conservation efforts are necessary to better understand its ecological dynamics. However, it appears that Rhynchocalamus hejazicus is predominantly nocturnal as all encountered individuals were active at night.

“The discovery of a new species of snake widespread in the central-western regions of Saudi Arabia is surprising and gives rise to the hope that more undiscovered species might be present in the Kingdom,” the authors say.

Orange snake with black collar and nose colouration on sandy ground.
Rhynchocalamus hejazicus.

Most observations of the new species are the result of intense sampling efforts in a vast area around the ancient Arabic oasis city of AlUla, fostered by the Royal Commission for AlUla, Saudi Arabia, which is pushing forward scientific activities and explorations to promote conservation in the region. Recent research in Saudi Arabia has led to fruitful collaborations and findings like this study, to which many experts from multiple teams contributed significantly.

The discovery of such a distinctive snake highlights the existing gap in knowledge of rare and secretive species, and the need to enhance sampling efforts and monitoring strategies to fully capture species diversity in unexplored areas.

Original source

Licata F, Pola L, Šmíd J, Ibrahim AA, Liz AV, Santos B, Patkó L, Abdulkareem A, Gonçalves DV, AlShammari AM, Busais S, Egan DM, Ramalho RMO, Smithson J, Brito JC (2024) The missing piece of the puzzle: A new and widespread species of the genus Rhynchocalamus Günther, 1864 (Squamata, Colubridae) from the Arabian Peninsula. Zoosystematics and Evolution 100(2): 691-704. https://doi.org/10.3897/zse.100.123441

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Leptanilla voldemort, a ghostly slender new ant species from the dark depths of the underground

Its name pays homage to the dark wizard Lord Voldemort, the fearsome antagonist of the Harry Potter series, drawing parallels with the ant’s ghostly appearance.

In the sun-scorched Pilbara region of north-western Australia, scientists have unearthed a mysterious creature from the shadows – a new ant species of the elusive genus Leptanilla.

The new species, Leptanilla voldemort – L. voldemort for short – is a pale ant with a slender build, spindly legs, and long, sharp mandibles. The species name pays homage to the dark wizard Lord Voldemort, the fearsome antagonist of the Harry Potter series, drawing parallels with the ant’s ghostly and slender appearance, and the dark underground environment, from which it has emerged.

Scientists Dr Mark Wong of the University of Western Australia and Jane McRae of Bennelongia Environmental Consultants describe the enigmatic new species in a paper published in the open access journal ZooKeys.

Leptanilla voldemort was discovered during an ecological survey to document animals living belowground in the arid Pilbara region of north-western Australia. Only two specimens of the bizarre new ant species were found. Both were collected in a net that was lowered down a 25-metre drill hole and skilfully retrieved while scraping against the hole’s inner surface – an innovative technique for collecting underground organisms known as ‘subterranean scraping’.

A general landscape of the Pilbara region.

Compared to other Leptanilla antspecies, L. voldemort has an extremely slender body as well as long, spindly antennae and legs. Together with its collection from a 25-metre-deep drill hole, this unusual morphologyhas left experts speculating as to whether it truly dwells in soil like other Leptanilla species, or exploits a different subterranean refuge, such as the air-filled voids and cracks that form within layers of rock deeper underground.

Leptanilla voldemort.

The long, sharp jaws of L. voldemort, however, leave little to the imagination.

“Leptanilla voldemort is almost surely a predator, a fearsome hunter in the dark. This is backed up by what we know from the few observations of specialised hunting behaviours in other Leptanilla antspecies, where the tiny workers use their sharp jaws and powerful stings to immobilise soil-dwelling centipedes much larger than them, before carrying their larvae over to feed on the carcass” said Dr Wong, lead author of the study.

A full-face view of Leptanilla voldemort, showing its sharp mandibles.

The exact prey of L. voldemort, however, is not known, though a variety of other subterranean invertebrates, including centipedes, beetles and flies, were collected from the same locality.

There are over 14,000 species of ants worldwide, but only about 60 belong to the enigmatic genus Leptanilla. Unlike most ants, all species of Leptanilla are hypogaeic – their small colonies, usually comprising a queen and only a hundred or so workers, nest and forage exclusively underground. To adapt to life in darkness, Leptanilla workers are blind and colourless. The lilliputian members of the ant world, these ants measure just 1 to 2 millimetres – not much larger than a grain of sand – allowing them to move effortlessly through the soil. Due to their miniscule size, pale colouration, and unique underground dwellings, finding Leptanilla species is a challenge even for expert ant scientists, and much of their biology remains shrouded in mystery.

While Australia boasts some of the highest levels of ant diversity in the world – with estimates ranging from 1,300 to over 5,000 species – L. voldemort is only the second Leptanilla species discovered from the continent. The first, Leptanilla swani, was described nearly a century ago – from a small colony found under a rock in 1931 – and has almost never been seen since.

With its formation beginning approximately 3.6 billion years ago, the Pilbara is one of the oldest land surfaces on Earth. Despite the scorching summers and meagre rainfall, the region harbours globally important radiations of underground invertebrates. Adding to the unique biodiversity of this ancient landscape, the discovery of the enigmatic ant L. voldemort is a testament to the wizardry of nature and the mysteries of life in the depths of darkness.

Research article:

Wong MKL, McRae JM (2024) Leptanilla voldemort sp. nov., a gracile new species of the hypogaeic ant genus Leptanilla (Hymenoptera, Formicidae) from the Pilbara, with a key to Australian Leptanilla. ZooKeys 1197: 171-182. https://doi.org/10.3897/zookeys.1197.114072

NOAA Fisheries Zoologist Describes New Fish Species

Dr. Katherine Bemis of the National Systematics Laboratory recently helped describe a new species of fish, the papillated redbait.

New species alert! Dr. Katherine Bemis of NOAA Fisheries’ National Systematics Laboratory and her collaborators recently described a new fish species: Emmelichthys papillatus, or the papillated redbait. Its discovery was published in the journal ZooKeys.

Emmelichthys papillatus. Photograph by the Kagoshima University Museum

The papillated redbait is a member of the family Emmelichthyidae. There are only 18 known species in this family, which are commonly called redbaits, rovers, or rubyfishes. These deepwater species can be found in warm, tropical waters and are usually bright shades of red, orange, and pink.

How did Bemis and her team make this remarkable discovery? To find out, we’ll have to first travel to a fish market in the Philippines.

A molecular mystery

As part of an interagency campaign to create a reference library of fish DNA “barcodes,” Bemis and her colleagues regularly travel abroad to collect fish specimens. Some come from seafood markets overseas where they are being sold for food. In the field, these new specimens are assigned a preliminary species identification. Then, they’re transported to the Smithsonian Institution and National Systematics Laboratory for genetic sequencing, data collection, and a secondary species confirmation.

Dr. Katherine Bemis holds the holotype–the specimen upon which a new species’ description is based–of the papillated redbait. Credit: Haley Randall/NOAA Fisheries

Since getting involved with this project in 2021, Bemis and teammate Dr. Matthew Girard of the Smithsonian National Museum of Natural History have analyzed thousands of samples. None have made a bigger splash, though, than two small pink fish collected from a Philippine fish market on the island of Cebu.

While collecting data from these specimens, Girard made an exciting observation. Their genetic sequences did not match their initial species identification as golden redbaits—or any other species in the genetic library, for that matter. So which species did Girard and Bemis have on their hands?

Dr. Matthew Girard examines the holotype of the papillated redbait under a microscope. Credit: Dr. Katherine Bemis. Source NOAA Fisheries

In search of answers, Bemis and Girard examined other aspects of the specimens’ biology, including their anatomy. They discovered that these fish differed from the golden redbait in several ways, including:

  • A different number of gill rakers, structures inside the mouth that help fish to feed
  • A different number of pectoral fin rays
  • Two fleshy structures called papillae on the pectoral girdle

These differences, combined with the genetic data, provided evidence that the two specimens were not golden redbaits, but a previously undiscovered species. With only two confirmed specimens, Bemis and Girard wondered if other individuals could be identified in global natural history collections.

Underneath the gill cover, you can observe the two characteristic papillae (singular: papilla) of the papillated redbait labeled with arrows (left). The closely-related golden redbait lacks papillae in the same area (right). Photos courtesy of Dr. Matthew Girard. Source NOAA Fisheries

After some detective work, Bemis and Girard spotted a third specimen they hypothesized might also be the undescribed species. A fish with similar color also identified as a golden redbait had been collected from a fish market in the Philippines by the Kagoshima University Museum in Japan. Bemis and Girard studied the specimen and confirmed their hypothesis with genetic and anatomical data. This specimen became the third record of papillated redbait and, ultimately, the holotype for the species—the specimen upon which a new species description is based.

More to discover

Even after describing new species, there’s always more to learn. Bemis and Girard are energized that there is still much to discover about the papillated redbait and the redbait family, which is relatively poorly known. Any opportunity to add to this small body of knowledge and study redbait species in greater detail is valuable. “I’ve had researchers that work on fish taxonomy say to me, ‘I didn’t even know this family existed.’ That’s how little we know about this group,” Girard emphasizes.

Bemis also notes that because data on the papillated redbait comes from only three specimens purchased in fish markets, she still has lots of questions. For example, Bemis says that they don’t yet know if the new species occurs outside Philippine waters, or the exact habitat in which they occur. “We also don’t know anything about their reproduction or what they eat—really basic aspects of their biology remain to be studied. Now that we recognize that it is different, we only have more to study as new specimens of papillated redbait are collected,” Bemis says.

“It is always a happy and productive moment working with U.S. scientists,” says Dr. Mudjekeewis “Mudjie” Santos of the Philippine National Fisheries Research and Development Institute. Santos was instrumental in the collection of specimens, providing fisheries data on the papillated redbait, and coining a name for the new species in Tagalog, the national language of the Philippines. Here, he examines fish in a Philippine market. Photo courtesy of Dr. Mudjekeewis Santos. Source NOAA Fisheries

One thing is for certain, though. There are more species just waiting to be discovered, and they might be right under our noses. “I think the craziest thing is that the papillated redbait is a new species that came from a market,” Girard says. “The fact that there are undescribed species being sold without us even realizing it underscores how much we still have to learn about marine biodiversity.”

Research article:

Girard MG, Santos MD, Bemis KE (2024) New species of redbait from the Philippines (Teleostei, Emmelichthyidae, Emmelichthys). ZooKeys 1196: 95-109. https://doi.org/10.3897/zookeys.1196.111161

This story was originally published by NOAA Fisheries. It is republished here with their permission.