Hoplerythrinus cinereus

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Hoplerythrinus cinereus
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Erythrinidae
Genus: Hoplerythrinus
Species:
H. cinereus
Binomial name
Hoplerythrinus cinereus
(Gill, 1858) [2]
Synonyms [2]
  • Erythrinus cinereusGill, 1858

Hoplerythrinus cinereus, the yarrow or yellowhead wolffish, is a species of freshwater ray-finned fish belonging to the family Erythrinidae, the trahiras. This species is endemic to the western drainage sistems on the island of Trinidad in Trinidad and Tobago but is of uncertain taxonomic status.

Contents

Taxonomy

Hoplerythrinus cinereus was first formally described as Erythrinus cinereus in 1858 by the American biologist Theodore Gill with its type locality given as "Trinidad Island, West Indies". [2] It was listed as a valid species of Erythrinus by Osvaldo Takeshi Oyakawa in 2003. [3] However, the International Union for Conservation of Nature classify H. cinereus as data deficient because they regard it as insufficiently studied to demonstrate that it is not a junior synonym of H. unitaeniatus . [1] This taxon is classfied within the genus Hoplerythrinus in the family Erythrinidae [2] which is within the suborder Characoidei of the order Characiformes. [4]

Etymology

Hoplerythrinus cinereus is a member of the genus Hoplerythrinus, this name combines the Greek hoplon, meaning "shield" or "armour", a reference to the infraorbital bones being large and covering the cheeks, with the genus name Erythrinus. These enlarged infraorbital bones are not unique to this genus and all trahiras have them. The specific name cinereus means "ashy", i.e. grey, an allusion to the colour of this fish. [5]

Distribution and habitat

Hoplerythrinus cinereus, if it is a valid species, is endemic to river catchments of the western part of the island of Trinidad in Trinidad and Tobago. [1]

References

  1. 1 2 3 Lyons, T.J. (2021). "Hoplerythrinus cinereus". IUCN Red List of Threatened Species . 2021: e.T125991919A125992069. doi: 10.2305/IUCN.UK.2021-1.RLTS.T125991919A125992069.en . Retrieved 21 June 2025.
  2. 1 2 3 4 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Hoplerythrinus". Catalog of Fishes . California Academy of Sciences . Retrieved 21 June 2025.
  3. ↑ Oyakawa, O. T. (2003). "Erythrinidae (Trahiras)". In R. E. Reis; S. O. Kullander; and C. J. Ferraris, Jr. (eds.). Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. pp. 238–240.
  4. ↑ Richard van der Laan; William N. Eschmeyer; Ronald Fricke. "Eschmeyer's Catalog of Fishes Classification". Eschmeyer's Catalog of Fishes . California Academy of Sciences . Retrieved 22 June 2025.
  5. ↑ Christopher Scarpf (26 April 2024). "Family ERYTHRINIDAE Valenciennes 1847 (Trahiras)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 22 June 2025.
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