This Week's Newly Described Species Worldwide Content Archive
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- 35 New Species Named in 24 Hours: May 14–15, 2026
- Five species named this week: a venomous Singapore jellyfish, an Indian leopard gecko, Spanish cave isopods, and Chinese moths
- 20 new species named May 18–19: a smiling Himalayan spider, two hidden reef doctors, and water bears from Vietnam
- 26 new species named May 19–20: two Cape Verde snails, a cliff-top rhododendron, a whale-fall worm, and seventeen arthropods
- 22 new species named May 20–21: a moth named for E.O. Wilson, sixteen chafer beetles at once, three Amazon catfish, and a fungus from panda dung
- 42 new species named May 21–22: three Himalayan pit vipers, a deep-sea copepod in its own new family, a critically endangered Vietnamese gesneriad, and eight Andean dung beetles
- 11 new species named May 22–23: a Texas mosasaur twice the length of a great white shark, a tree in its own new genus from Cretaceous France, and an Endangered Colombian cannonball-tree relative
- 5 new species named May 24: five South China Sea flatworms — including a brand-new genus — from a single integrative-taxonomy paper
- 20 new species named May 25: a Galápagos deep-sea octopus, three hadal protists from 10,000 m, an endangered Mexican cycad, and a Monday haul from Zootaxa
- 22 new species named May 26: yellow lipstick plants from Borneo, two firefly pairs from Meghalaya, and deep-sea sea cucumbers from the Emperor Seamounts
- 36 new species named May 27: 15 Chinese planthoppers, a Vulnerable Turkish bellflower, a Triassic witch-ranch archosaur, and a midweek surge across 7 journals
- 32 new species named May 27–28: a Cretaceous bird with tail feathers twice its body length, a plantain feared extinct since 2003, and beetles that pupate in foam
- 39 new species named May 29: *Kank australis* — a Patagonian dinosaur from the age of extinction — plus a cobalt mushroom from Borneo and three new snail genera from Vietnam
- 12 new species named May 30: a Nagaland cascade frog and 11 Australian slugs in a landmark family revision
- 9 new sea snails named May 30, from Vietnam to West Africa
- 4 new species named June 1: a flathead fish breaks a single-species genus
- 31 new species named June 2–3: blind cave fish, a Eocene fairyfly, and a cycad facing extinction
- 23 new species named June 4: a dinosaur from Gansu, nine deep-sea crustaceans, and ostracods crossing from sea to lake
- 37 new species named June 5: deep-sea kinorhynchs rewrite a textbook rule, a CR primrose, and a beetle named after Monkey D. Luffy
- 25 new species named June 8: a second cave raptor spider, a CR gesneriad with 70 plants left, and a new cordyceps
- 26 new species named June 9: a new porcupine from Ecuador found after 15 years, a deepwater shark from India, and a cricket in amber
- 27 taxonomic novelties named June 10: a deep-water chimaera from Costa Rica, a freshwater snail with a structural first, and three cave spiders from Japan
- 48 taxonomic novelties named June 10–11: a Triassic fossil with a 20-year cold case, 16 Moroccan spiders, and a record single-day count
- 26 new species named June 12: a cricket with a forewing groove no one has seen before, two fungi that eat zombie-ant fungi, and an Endangered shrub from Namibia's ultramafic mountains
- 8 more species named June 12 — a Critically Endangered gesneriad found via TikTok, and an Antarctic copepod seen just 11 times
- 32 new species named Monday — two new Cameroonian bats, a Vulnerable Ecuadorian frog, and a spider that crossed 5,500 km of open ocean
- 33 new species named Tuesday — a Da Vinci amphipod, an Attenborough diatom, and three new gastropod genera in a single paper
- 45 new species named Wednesday: an Axinaea sweep across the Andes, a Japan-first deep-sea worm, and an endangered cave flower with a beard
- 22 new species named Thursday: five critically endangered cave ferns, a giant Bahamian isopod, and a jawless fish dead for 419 million years
- 71 new species named Friday: 57 Miocene microgastropods resurface after 15 million years, plus cave spiders, cliff primroses, and nudibranchs from New Caledonia
- *Acutigebia succinacia*: a new mud shrimp from Japan
- *Falcidens porrectus*: a new glistenworm from the Brazilian deep
- Monday's haul: four sky-island chameleons from Mozambique, a ladybird in a termite nest, and 14 other species named June 22, 2026
- 29 new species named Tuesday: a stag beetle from the Himalayas, cave creatures across three continents, and five endangered wildflowers from one Kerala hillside
- 54 new species named Wednesday: a Critically Endangered bromeliad found with Brazil's Pataxó people, five Indian mantises, and a new cave-shrimp genus from the Caribbean
- 8 new species named Thursday: seven new fungal genera rewrite a marine family, and a striped river fish from Zhangjiajie
- 13 new species named Friday: an orchid at risk
- 173 new species in one week