Xenocys

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Xenocys
Xenocys jessiae.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Haemulidae
Subfamily: Haemulinae
Genus: Xenocys
D. S. Jordan & Bollman, 1890
Species:
X. jessiae
Binomial name
Xenocys jessiae
D. S. Jordan & Bollman, 1890
Synonyms [2]

Brachygenys jessiae(D.S. Jordan & Bollman, 1890)

Xenocys jessiae, the black-striped salema, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is endemic to the eastern Pacific Ocean.

Contents

Description

Xenocys jessiae has a relatively slender, elongated body, notably different from most related species. [3] The head is conical in shape and has large eyes and a short diagonal mouth with a protruding lower jaw. It has very small teeth which are set in bands on the flaws and the palate. The dorsal fin is not continuous, the anterior spiny portion is completely divided from the posterior soft- rayed part. The dorsal fin contains 10 spines in the anterior portion and a single spine and 13-14 soft rays. The anal fin has 3 small spines and 10-11 soft rays. [4] This species attains a maximum total length of 30 cm (12 in). [5] The back is dark silvery-grey in colour, frequently showing yellowish green, yellowish blue or blue-green tints. The colour shades to paler silver on the flanks and to silvery-white on the underparts. [3] There are 7 black, horizontal stripes along the flanks. [4]

Distribution

Xenocys jessiae is found in the eastern Pacific Ocean where it is endemic to the waters around the Galápagos Islands. [1]

Habitat and biology

Xenocys jessiae is found at depths between 0 and 20 m (0 and 66 ft). [1] It forms dense scoops in these shallow waters. [3] These spend the day along rock walls and over rocky slopes. [5] They feed on plankton and small fishes. [4] It is an oviparous species, spawning in distinct pairs. [5]

Systematics

Xenocys jessiae was first formally described in 1890 by the American ichthyologists David Starr Jordan (1851-1931) and Charles Harvey Bollman (1868-1889) with the type locality given as Isla Santa Maria in the Galápagos Islands of Ecuador. [2] This species is placed in the genus Brachygenys by some authorities this was done when Haemulon was determined to be paraphyletic in molecular studies which showed Haemulon chrysargyreum , the type species of Felipe Poey’s Brachygenys, clustered with Xenistius californianus . The genus was therefore revived to include also includes the other species in Xenistius and this species. [6] [7] This change has been accepted by Catalog of Fishes [8] but not by Fishbase. [9] The specific name honours Jordan’s second wife Jessie Knight Jordan (1866-1952). [10]

Related Research Articles

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

Haemulidae is a family of fishes in the order Perciformes known commonly as grunts. It is made up of the two subfamilies Haemulinae (grunters) and Plectorhynchinae (sweetlips), which in turn contain about 133 species in 19 genera. These fish are found in tropical fresh, brackish, and salt waters around the world. They are bottom-feeding predators, and named for the ability of Haemulinae to produce sound by grinding their teeth. They also engage in mutualistic relationship with cleaner gobies of genus Elacatinus, allowing them to feed on ectoparasites on their bodies.

<span class="mw-page-title-main">Caesar grunt</span> Species of fish

The Caesar grunt, also known as the black grunt, blacktail grunt, or redmouth grunt is a species of marine ray-finned fish, a grunt in the family Haemulidae. It is native to the western Atlantic Ocean

<span class="mw-page-title-main">Brownstriped grunt</span> Species of fish

The brownstriped grunt, also known as the burro, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is native to the western Atlantic Ocean.

<i>Plectorhinchus albovittatus</i> Species of fish

Plectorhinchus albovittatus, the two-striped sweetlips or giant sweetlips, is a species of marine ray-finned fish, a sweetlips belonging to the subfamily Plectorhinchinae, part of the grunt family Haemulidae. It is native to the Indian Ocean and the western Pacific Ocean.

<span class="mw-page-title-main">Bluestriped grunt</span> Species of fish

The bluestriped grunt, also known as the boar grunt, golden grunt, humpback grunt, redmouth grunt, or yellow grunt, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is found in the western Atlantic Ocean.

<i>Haemulon flavolineatum</i> Species of fish

Haemulon flavolineatum, the French grunt, banana grunt, gold laced grunt, open-mouthed grunt, redmouth grunt, or yellow grunt, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is native to the western Atlantic Ocean.

<i>Haemulon</i> Genus of fishes

Haemulon is a genus of fish in the grunt family known as the scaled-fin grunts. Most are found in the western Atlantic Ocean, with a few species known from the eastern Pacific Ocean. This genus is considered to be one of the most important fish groups of the coral reefs of Brazil due to its commercial value and crucial ecological role.

<i>Genyatremus luteus</i> Species of fish

Genyatremus luteus, the Torroto grunt, is a species of marine ray-finned fish, a sweetlips belonging to the subfamily Plectorhinchinae of the family Haemulidae. It is native to the Atlantic coast of South America from Colombia to Brazil.

The dara is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is native to the Atlantic coast of Africa. It is the only species in the monospecific genus Parakuhlia.

<i>Xenistius</i> Genus of fishes

Xenistius is a genus of grunts native to the eastern Pacific Ocean.

<i>Haemulon chrysargyreum</i> Species of fish

Haemulon chrysargyreum, the smallmouth grunt, bronze grunt, or yellowstripe grunt, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is found in the western Atlantic Ocean.

<i>Haemulon scudderii</i> Species of fish

Haemulon scudderii, the grey grunt, golden-eye grunt, or mojarra grunt, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is found in the eastern Pacific Ocean.

<i>Pomadasys maculatus</i> Species of fish

Pomadasys maculatus, commonly known as the saddle grunt, blotched grunt or blotched javelin, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is native to the Indo-West Pacific region.

<i>Pomadasys kaakan</i> Species of fish

Pomadasys kaakan, the javelin grunter or barred javelin is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is native to the Indian and Pacific Oceans, from Africa to Australia.

<i>Haemulon album</i> Species of fish

Haemulon album, the white margate, grey grunt, grunt, Margaret fish, Margaret grunt, margate, margate fish, ronco blanco, viuda, white grunt, white pogret, or yellow grunt is a species of ray-finned fish, a large grunt belonging to the family Haemulidae. It is native to the western Atlantic Ocean.

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

Haemulinae is a subfamily of the Haemulidae and consists of the genera of that family which are regarded as being of New World origin, although they are now widespread. The subfamily is distinguished from the Plectorhynchinae by having a short dorsal fin which contains 13-16 soft rays, as opposed to the long dorsal fin with 17-26 soft rays of the subfamily Plectorhynchinae.

<i>Brachygenys</i> Genus of fishes

Brachygenys is a genus of marine ray-finned fish, grunts belonging to the family Haemulidae. The species within the genus are found in the eastern Pacific Ocean and western Atlantic Ocean. It is not yet recognised by Fishbase but is by the Catalog of Fishes.

<i>Orthopristis reddingi</i> Species of fish

Orthopristis reddingi, the bronze-striped grunt, is a species of ray-finned fish, a grunt belonging to the family Haemulidae. It is endemic to Mexico, occurring from central Baja California, including the southern Sea of Cortez, to central Mexico. It is found in schools over sandy substrates in coastal waters and the juveniles are frequently recorded in tidal pools. They are found at depths between 5 and 30 m. This species was first formally described in 1895 by the American ichthyologists David Starr Jordan and Robert Earl Richardson, the type locality was given as La Paz, Baja California Sur. The specific name honours in Benjamin B. Redding (1824-1882), the politician who was the first Fish Commissioner of California.

<i>Pomadasys argenteus</i> Species of fish

Pomadasys argenteus, the silver grunt, silver javelin, grunter bream, small-spotted grunter-bream, small-spotted javelin fish, trumpeter or white-finned javelin fish, is a species of marine ray-finned fish, a grunt from the family Haemulidae. This species has a wide Indo-Pacific distribution. It is the type species of the genus Pomadasys.

<span class="mw-page-title-main">African striped grunt</span> Species of fish

The African striped grunt is a species of marine ray-finned fish, a sweetlips belonging to the subfamily Plectorhinchinae, one of two subfamilies in the family Haemulidae, the grunts. It is found in the eastern Atlantic Ocean.

References

  1. 1 2 3 Allen, G.; Robertson, R.; Rivera, F.; Edgar, G.; Merlen, G. (2010). "Xenocys jessiae". IUCN Red List of Threatened Species . 2010: e.T183395A8105917. doi: 10.2305/IUCN.UK.2010-3.RLTS.T183395A8105917.en . Retrieved 20 November 2021.
  2. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Brachygenys". Catalog of Fishes . California Academy of Sciences . Retrieved 8 April 2021.
  3. 1 2 3 "Xenocys jessiae Jordan & Bollman, 1890". Galapagos Species Checklist. Darwin Foundation. Retrieved 9 April 2021.
  4. 1 2 3 "Species: Xenocys jessiae, Black-striped salema". Shorefishes of the Eastern Pacific online information system. Smithsonian Tropical Research Institute. Retrieved 9 April 2021.
  5. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2019). "Xenocys jessiae" in FishBase . December 2019 version.
  6. José Julián Tavera; P. Arturo Acero; Eduardo F Balart; Giacomo Bernardi (2012). "Molecular phylogeny of grunts (Teleostei, Haemulidae), with an emphasis on the ecology, evolution, and speciation history of New World species". BMC Evolutionary Biology. 12 (57): 57. doi: 10.1186/1471-2148-12-57 . PMC   3472276 . PMID   22537107.
  7. Paolo Parenti (2019). "An annotated checklist of the fishes of the family Haemulidae (Teleostei: Perciformes)". Iranian Journal of Ichthyology. 6 (3): 150–196.
  8. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Haemulinae". Catalog of Fishes . California Academy of Sciences . Retrieved 9 April 2021.
  9. Froese, Rainer, and Daniel Pauly, eds. (2019). "Haemuidae" in FishBase . December 2019 version.
  10. Christopher Scharpf; Kenneth J. Lazara, eds. (5 January 2021). "Order LUTJANIFORMES: Families HAEMULIDAE and LUTJANIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 9 April 2021.