Xingu corydoras

"C107" redirects here. For the International Labour Organization Convention, C107, see Indigenous and Tribal Populations Convention, 1957.
This article is about a tropical fish. For other uses, see Xingu.

Xingu corydoras
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Callichthyidae
Genus: Hoplisoma
Species:
H. xinguense
Binomial name
Hoplisoma xinguense
(Nijssen, 1972)[2]
Synonyms[2]
  • Corydoras xinguensis Nijssen, 1972

The Xingu corydoras (Hoplisoma xinguense) is a species of freshwater ray-finned fish belonging to the subfamily Corydoradinae, the corys, of the family Callichthyidae, the armoured catfishes.[2] This catfish is endemic to Brazil, where it is found in the Xingu drainage system in Pará and Mato Grosso.[1]

Taxonomy

The Xingu corydoras was first formally described as Corydoras xinguensis in 1972 by the Dutch ichthyologist Han Nijssen, with its type locality given as Suia Missú Creek, a tributary of the upper Rio Xingu near Posto Diauarum, around 11°15'S, 53°00'W in Mato Grosso.[2] It had been known in the aquarium trade as C055, C056, C105, C106, C107 and C108, the c-numbers being allocated to different colour variants according to the system oroiginally devised for Corydoras catfishes by the German fishkeeping magazine DATZ.[3][4] In 2025, a phylogenetic study placed this species in lineage 9 in its former genus, and the genus name was revised to Hoplisoma.[5]

Description

Xingu corydoras are grey with dark spots over the upper body above the lateral line; the lower body and underside are uniform grey. There are spots on the dorsal and pectoral fin spines with faint spotting on the caudal fin.[5] As they mature, they develop a pinkish tinge to their main body colouration, which is broken by brown speckles.[6] This species attains a maximum standard length of 3.7 cm (1.5 in), and it is a facultative air breather.[7]

Distribution

The Xingu corydoras is endemic to Brazil, where it is known with certainty only from the basin of the Xingu River. Records from the basin of the Tocantins River are thought to be misidentifications.[1]

Utilisation

The Xingu corydoras is allowed to be exported from Brazil for the aquarium trade.[1]

See also

References

  1. ^ a b c d Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) (2022). "Corydoras xinguensis". IUCN Red List of Threatened Species (in Brazilian Portuguese). 2022 e.T49830682A134702004. doi:10.2305/IUCN.UK.2022-1.RLTS.T49830682A134702004.pt. Retrieved 12 December 2025.
  2. ^ a b c d Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Species in the genus Hoplisoma". Catalog of Fishes. California Academy of Sciences. Retrieved 12 December 2025.
  3. ^ Evers, Hans-Georg. "A system called "C-Numbers"". Archived from the original on June 19, 2006. Retrieved 2006-06-08.
  4. ^ Mark Bryson. "Hoplisoma xinguense (Nijssen, 1972)". scotcat.com. Retrieved 12 December 2025.
  5. ^ a b Mark Bryson. "Breeding Corydoras xinguensis". scotcat.com. Retrieved 12 December 2025.
  6. ^ "Xingu corydoras (Corydoras xinguensis)". en.aqua-fish.net. Retrieved 2019-06-29.
  7. ^ Froese, Rainer; Pauly, Daniel (eds.). "Corydoras xinguensis". FishBase. April 2025 version.
allikas: http://en.wikipedia.org/wiki/Xingu_corydoras