Eschmeyer nexus

Last updated

Eschmeyer nexus
Eschmeyer nexus.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Suborder: Scorpaenoidei
Family: Eschmeyeridae
Mandritsa [1]
Genus: Eschmeyer
Poss & V. G. Springer, 1983 [2]
Species:
E. nexus
Binomial name
Eschmeyer nexus
Poss & V. G. Springer, 1983 [3]

Easchmeyer nexus is a species of marine ray-finned fish; it is the only species in the monotypic genus Eschmeyer and monogeneric family Eschmeyeridae. This fish is only known from the Pacific Ocean, near Fiji.

Contents

Taxonomy

Eschmeyer nexus was first formally described in 1983 by the American ichthyologists Stuart G. Poss and Victor G. Springer with the type locality given as Fiji. [3] Poss and Springer placed their new species in the new monotypic genus Eschmeyer [2] and in 2001 Sergey Anatolyevich Mandritsa classified that genus within the monogeneric family Eschmeyeridae, [1] The 5th edition of Fishes of the World classifies the family within the suborder Scorpaenoidei which in turn is classified within the order Scorpaeniformes. [4] Other authorities place the Scorpaenoidei within the Perciformes. [5] A recent study placed the genus Eschmeyer into an expanded stonefish clade, the Synanceiidae, because all of these fish have a lachrymal sabre that can project a switch-blade-like mechanism out from underneath their eye. [6] [7] The name of both the genus and family honours William N. Eschmeyer, an American ichthyologist at the California Academy of Sciences, or his work on the Scorpaenid fishes. The specific name nexus, is derived from nectere, Latin for 'tie' or 'connect', a reference to the suite of features suggesting this taxon has a close relationship with a number of groups within the Scorpaenoidei. Mandritsa suggested the English common name of cofish in recognition of Eschmeyer’s participation in the Catalog of Fishes . [8]

Description

Eschmeyer nexus has eight spines and thirteen soft rays in the dorsal fin, with the first few dorsal fin spines being very short, while the anal fin has three spines and eight soft rays. All the fin rays are unbranched. The front part of the throat, the isthmus, does not have any fleshy papillae and the gill membranes do not have a wide junction with the isthmus. The frontal and parietal bones are well developed. There are no spines on the preorbital bone. The only scales are those on the lateral line which has ten tubed scales. There are no spiny projections to the rear of the caudal peduncle The pelvic fin membrane is joined to the body and is fused to the membrane of opposite pelvic fin. There is no detached pectoral fin ray. This is a small fish with a maximum standard length of 4.1 cm (1.6 in). [9]

Distribution and habitat

Eschmeyer nexus is found in the western central Pacific Ocean where it has only been recorded from Fiji. It is a demersal fish. [9]

Related Research Articles

<span class="mw-page-title-main">Red velvetfish</span> Species of fish found in Australia

The red velvetfish is a species of marine ray-finned fish, it is the only species in the monotypic genus Gnathanacanthus and monogeneric family Gnathanacanthidae. This species is endemic to the inshore waters of western and southern Australia.

<span class="mw-page-title-main">Congiopodidae</span> Family of fishes

Congiopodidae, commonly known as pigfishes, horsefishes and racehorses, is a family of ray-finned fish classified with in the order Scorpaeniformes. These fishes are native to the Southern Hemisphere.

<span class="mw-page-title-main">Australian prowfish</span> Family of fishes

The Australian prowfishes are a small family, the Pataecidae, of ray-finned fishes classified within the order Scorpaeniformes. Australian prowfishes are distinguished by a long dorsal fin that begins far forward on the head, forming a "prow" shape, and extends all the way to the caudal fin. They lack scales and pelvic fins.

<span class="mw-page-title-main">Velvetfish</span> Family of fishes

Little velvetfishes or simply velvetfishes are a family, the Aploactinidae, of marine ray-finned fishes classified within the order Scorpaeniformes. They are small fish that have skin with a velvet texture. They live on the sea bottom close to the shore, at depths of up to 100 metres (330 ft). They are found in the Indo-Pacific region.

<span class="mw-page-title-main">Apistinae</span> Family of fishes

Apistinae, the wasp scorpionfishes, is a subfamily of venomous, marine ray-finned fishes belonging to the family Scorpaenidae, the scorpionfishes and related species. These fishes are native to the Indian Ocean and the western Pacific Ocean.

<span class="mw-page-title-main">Tetraroginae</span> Subfamily of fishes

Tetraroginae is a subfamily of marine ray-finned fishes, commonly known as waspfishes or sailback scorpionfishes, belonging to the family Scorpaenidae, the scorpionfishes and their relatives. These fishes are native to the Indian Ocean and the West Pacific. As their name suggests, waspfishes are often venomous; having poison glands on their spines. They are bottom-dwelling fish, living at depths to 300 metres (980 ft). These creatures usually live in hiding places on the sea bottom.

The visitor, also known as the sandpaper velvetfish,is a species of marine ray-finned fish, a velvetfish belonging to the family Aploactinidae. It is the only member of the monotypic genus Adventor. This species is found the Pacific Ocean waters along the coasts of Papua New Guinea and Australia.

<i>Cocotropus</i> Genus of fishes

Cocotropus is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. The genus is found in the Indian and western Pacific oceans.

<i>Erisphex</i> Genus of fishes

Erisphex is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. The genus is found in the Indian and western Pacific oceans.

<i>Kanekonia</i> Genus of fishes

Kanekonia is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. The genus is found in the western Pacific and eastern Indian oceans.

The rare velvetfish is a species of marine ray-finned fish, a velvetfish belonging to the family Aploactinidae. It is known only from the coasts of Queensland and New South Wales in Australia. It is the only member of the monotypic genus Matsubarichthys.

The threefin velvetfish is a species of marine ray-finned fish, a velvetfish belonging to the family Aploactinidae. This species is found the western Pacific Ocean where it has been found on reefs. This species grows to a length of 5 centimetres (2.0 in) TL. This species is the only known member of its genus.

<i>Paraploactis</i> Genus of fishes

Paraploactis is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. The genus is found the Indo-Pacific.

The deceitful velvetfish is a species of marine ray-finned fish, a velvetfish, belonging to the family Aploactinidae. This species is endemic to the oceans around Australia. This species is the only known member of its genus.

Prosoproctus is a genus of velvetfish native to the South China Sea where it occurs at depths of from 69 to 82 metres. The only known member of the genus is Prosoproctus pataecus.

Pseudopataecus is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. This genus is endemic to the waters around Australia.

<i>Xenaploactis</i> Genus of fishes

Xenaploactis is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. This genus is found in the western Pacific Ocean and the eastern Indian Ocean.

<span class="mw-page-title-main">Whitenose pigfish</span> Species of fish

The whitenose pigfish is a species of marine ray-finned fish belonging to the family Congiopodidae, the horsefishes or pigfishes. It is endemic to the waters off southern and western Australia. It is the only species in the monotypic genus Perryena and the classification of that genus in the family Congiopodidae is not universally agreed upon.

<span class="mw-page-title-main">Warty prowfish</span> Species of fish

The warty prowfish, also known as the smooth prowfish or Tasmanian prowfish, is a species of marine ray-finned fish, an Australian prowfish belonging to the family Pataecidae, It is endemic to the coastal waters of southern Australia where it inhabits mostly rocky reefs. This species is the only member of the monotypic genus Aetapcus.

<i>Ocosia</i> Genus of fishes

Ocosia is a genus of ray-finned fishes, waspfishes belonging to the subfamily Tetraroginae, which is classified as part of the family Scorpaenidae, the scorpionfishes and their relatives. These fish are found in the Indian Ocean and western Pacific Ocean.

References

  1. 1 2 Richard van der Laan; William N. Eschmeyer & Ronald Fricke (2014). "Family-group names of Recent fishes". Zootaxa. 3882 (2): 001–230. doi: 10.11646/zootaxa.3882.1.1 . PMID   25543675.
  2. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Eschmeyerinae". Catalog of Fishes . California Academy of Sciences . Retrieved 8 May 2022.
  3. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Eschmeyer". Catalog of Fishes . California Academy of Sciences . Retrieved 8 May 2022.
  4. ↑ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 467–495. ISBN   978-1-118-34233-6. Archived from the original on 2019-04-08. Retrieved 2022-05-08.
  5. ↑ Ricardo Betancur-R; Edward O. Wiley; Gloria Arratia; et al. (2017). "Phylogenetic classification of bony fishes". BMC Evolutionary Biology. 17 (162): 162. doi: 10.1186/s12862-017-0958-3 . PMC   5501477 . PMID   28683774.
  6. ↑ Smith, W. Leo; Smith, Elizabeth; Richardson, Clara (February 2018). "Phylogeny and Taxonomy of Flatheads, Scorpionfishes, Sea Robins, and Stonefishes (Percomorpha: Scorpaeniformes) and the Evolution of the Lachrymal Saber". Copeia. 106 (1): 94–119. doi:10.1643/CG-17-669.
  7. ↑ Willingham, AJ (April 13, 2018). "Stonefish are already scary, and now scientists have found they have switchblades in their heads". CNN.
  8. ↑ Christopher Scharpf & Kenneth J. Lazara, eds. (10 March 2022). "Order Perciformes (Part 10): Suborder Scorpaenoidei: Families Apistidae, Tetrarogidae, Synanceiidae, Aploacrinidae, Perryenidae, Eschmeyeridae, Pataecidae, Gnathanacanthidae, Congiopodidae and Zanclorhynchidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 8 May 2022.
  9. 1 2 Froese, Rainer; Pauly, Daniel (eds.) (2022). "Eschmeyer nexus" in FishBase . February 2022 version.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.