Notothenia trigramma

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Notothenia trigramma
Antarctic fishes of the Scottish National Antarctic expedition (1913) (19372572161).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Nototheniidae
Genus: Notothenia
Species:
N. trigramma
Binomial name
Notothenia trigramma
Regan, 1913
Synonyms [1]
  • Paranotothenia trigramma(Regan, 1913)

Notothenia trigramma is a species of marine ray-finned fish, belonging to the family Nototheniidae, the notothens or cod icefishes. It occurs in the southwestern Atlantic Ocean.

Contents

Taxonomy

Notothenia trigramma was first formally described in 1913 by the English ichthyologist Charles Tate Regan with the type locality given as the harbour at Port Stanley in the Falkland Islands, the type specimen being collected on the Scottish National Antarctic Expedition. [2] Some authorities classify this species in the genus Paranotothenia , [3] although FishBase has retained it in the genus Notothenia pending further studies. [1] Other authorities have placed this species in the genus Patagonotothen and some have regarded it as a synonym of Patagonotothen canina . [4] The specific name trigramma means “three lined”, a reference to the three lateral lines possessed by this species. [5]

Description

Notothenia trigramma has a body which has a standard length which is five times its depth. It has a projecting lower jaw and the maxilla reaches the front third of the eye. The head is scaly except for the snout, nose and gill covers. The first dorsal fin has 6 spines, the second dorsal fin has 34 rays while the anal fin has 32 rays. The caudal fin is rounded. There are three lateral lines, upper, middle and lower. The overall colour is brownish with darker fins. The total length of the holotype was 280 mm (11 in). [2]

Distribution, habitat and biology

Notothenia trigramma is found in the southwestern Atlantic around the Falkland Islands. This is a little known demersal species which is thought to have benthic habits. [1]

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References

  1. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2021). "Notothia trigramma" in FishBase. June 2021 version.
  2. 1 2 Charles T. Regan (1913). "Antarctic fishes of the Scottish National Antarctic expedition". Proceedings of the Royal Society of Edinburgh B. 49 (Part II (Part 2)).
  3. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Paranotothenia". Catalog of Fishes . California Academy of Sciences . Retrieved 26 September 2021.
  4. Balushkin, A. V. (2000). "Morphology, classification, and evolution of notothenioid fishes of the Southern Ocean (Notothenioidei, Perciformes)". Journal of Ichthyology. 40 (Supplement 1): S74–S109.
  5. Christopher Scharpf & Kenneth J. Lazara, eds. (12 April 2021). "Order Perciformes: Suborder Notothenoididei: Families Bovichtidae, Pseaudaphritidae, Elegopinidae, Nototheniidae, Harpagiferidae, Artedidraconidae, Bathydraconidae, Channichthyidae and Percophidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 26 September 2021.