Priocharax piagassu

Priocharax piagassu
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Acestrorhamphidae
Genus: Priocharax
Species:
P. piagassu
Binomial name
Priocharax piagassu
Silva Lopez, Souza, Reia, Mantuaneli, Morales, F. C. T. Lima, Oliveira & Mattox, 2025

Priocharax piagassu is a minute species of fish native to the Rio Purus and Solimões Draina, Brazil. The species, which has a skeleton of cartilage, is almost completely transparent.[1][2]

Size

This species reaches a length of 1.4 cm (0.55 in).[3]

Etymology

The fishes name comes from Nheengatu, an Indigenous language in Amazonas, Brazil, in which pid means "heart" and wa'su means "big," i.e., the "big heart", which is the region in the middle of the Amazon basin where the type specimens were collected. [4]

References

  1. ^ Giovanna Guimarães Silva Lopez, Camila Silva Souza, Lais Reia, Larissa Arruda Mantuaneli, Bruno Ferezim Morales, Flávio Cesar Thadeo Lima, Claudio Oliveira & George Mendes Taliaferro Mattox (2025). Two New Species of Miniature Tetras of the Genus Priocharax (Teleostei: Characiformes: Acestrorhamphidae) from the Rio Purus and Solimões Drainages, Amazonas, Brazil. Taxonomy 5(3): 36. DOI: 10.3390/taxonomy5030036
  2. ^ Mattox, G.M.T., F.C.T. Lima, R. Britz, C.S. Souza and C. Oliveira, 2024. Two new miniature species of the fish genus Priocharax from the Rio Tapajós and Amazonas drainages, Pará, Brazil (Teleostei: Characiformes: Characidae). Vertebrate Zoology 74:533-550.
  3. ^ Froese, Rainer; Pauly, Daniel (eds.). "Priocharax piagassu". FishBase. February 2025 version.
  4. ^ Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Family ACESTRORHAMPHIDAE Eigenmann 1907 (American Tetras)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 14 December 2025.