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New species

Just discovered by science

Every morning a robot searches scientific journals for freshwater fish, shrimp, snails and water plants that were just given a name. Each one is checked against the scientific paper before it appears here, with its sources.

3 checked · none waiting · searched again every morning
Laimosemion laranjaLeptorhamdia kamilaiPyrrhulina punctataNews & trends
FishNamed Sept 2026 · Zoosystematics and Evolution 102(4)

Laimosemion laranja

A tiny new killifish from forest streams of the lower Rio Cajari in Amapá, Brazil. Males have grey flanks with rows of orange dots and orange chevrons, and an orange dorsal fin with blue spots. The scientists rate it Endangered: it is known from only three places, threatened by deforestation, old mining pools and pollution.

Where
Lower Rio Cajari, Amapá, Brazil (Amazon basin)
Size
About 2.7 cm body length, without tail (largest male)
Home
Clear, gently flowing pools beside forest streams, sand or mud bottom, floating plants
Status
Endangered (assessed by the authors)

Relatives you can keep: Gardner's killifish · Lyretail killifish · Clown killifish

Not in shops: newly named species are usually not for sale, and some are protected where they live.

Checked against sources on 16 Oct 2026
  • Abrantes et al. 2026, Zoosystematics and Evolution (the paper)
  • Nautilus: A Striking New Fish Species Discovered in Amazon
FishNamed 27 Apr 2026 · Neotropical Ichthyology 24(1)

Leptorhamdia kamilai

A new small catfish from central Brazil with a pale yellowish collar behind the head, a mark no close relative has. It hides in leaf litter on muddy river bottoms about 1.5 m deep, so the scientists had to dive and dig through the mud to find it.

Where
Upper Arinos and Juruena rivers (Tapajós basin) and Aripuanã river (Madeira basin), Mato Grosso, Brazil
Size
Up to 9.2 cm body length, without tail
Home
Leaf-litter banks on muddy river bottoms

Not in shops: newly named species are usually not for sale, and some are protected where they live.

Checked against sources on 16 Oct 2026
  • Silva et al. 2026, Neotropical Ichthyology (the paper)
FishNamed Mar 2026 · Journal of Fish Biology

Pyrrhulina punctata

A new small pyrrhulina, a cousin of the splashing tetra and the pencilfish, from slow streams of the Tigre River basin in the Peruvian Amazon. All known places where it lives are inside protected forest, including Pucacuro National Reserve.

Where
Tigre River basin, Loreto, Peru
Size
Unknown (small; not given in the sources we checked)
Home
Slow-moving forest streams

Relatives you can keep: Splashing tetra · Pencilfish · Coral red pencilfish

Not in shops: newly named species are usually not for sale, and some are protected where they live.

Checked against sources on 16 Oct 2026
  • Netto-Ferreira et al. 2026, Journal of Fish Biology (the paper)
  • Earth.com: Strange new Amazon fish species discovered in a nature reserve
  • Aquatab species entry

How we check

  1. The robot finds a paper that names a new freshwater species.
  2. It waits in a queue. Nothing from the queue is shown on the site.
  3. The paper is read and every fact is checked: name, where it lives, size. Unknown stays unknown.
  4. Only then does it appear here, with links to the paper and the sources.