Priocharax rex

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Priocharax rex
Priocharax rex.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Acestrorhamphidae
Genus: Priocharax
Species:
P. rex
Binomial name
Priocharax rex

Priocharax rex is a minute species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. [1] This fish is considered to be found exclusively in the middle part of the Putumayo River basin in Colombia. [2]

Contents

Size

This species reaches a length of 2.07 cm (0.81 in). [2]

Etymology

The fish's name means "king" in Latin, referring to its size as the largest fish of the genus Priocharax . [2]

Skin flap Priocharax rex skin flap.jpg
Skin flap

Biology

Priocharax rex is distinguishable by a round flap of skin between contralateral pelvic fins. [3]

References

  1. ↑ "CAS - Eschmeyer's Catalog of Fishes". researcharchive.calacademy.org. Retrieved 2025-12-09.
  2. 1 2 3 "Nueva especie de pez miniatura es descubierta en el Río Putumayo, Amazonas, Colombia". sinchi.org.co (in Spanish). Retrieved 2025-12-09.
  3. ↑ Mattox, George Mendes Taliaferro; Acosta-Santos, Astrid; Gregory, Juan D. Bogotá-; Agudelo, Edwin; Lima, Flávio C. T. (2025-01-28). "A new miniature Priocharax from the Rio Putumayo drainage, Amazonas State, Colombia (Teleostei: Characiformes: Characidae) with an unusual skin flap between pelvic fins". Zootaxa. 5575 (4): 545–554. doi:10.11646/zootaxa.5575.4.4. ISSN   1175-5334. PMID   40173851.
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