Lythrichthys

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Lythrichthys
FMIB 41119 Lythrichthys eulabes Jordan & Starks 2.jpeg
Lythrichthys eulabes
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Subfamily: Setarchinae
Genus: Lythrichthys
Jordan & Starks, 1904
Type species
Lythrichthys eulabes
Jordan & Starks, 1904 [1]
Synonyms [2]

Lythrichthys, the red deepwater scorpionfishes, is a genus of marine ray-finned fish, belonging to the subfamily Setarchinae, the deep-sea bristly scorpionfishes, part of the family Scorpaenidae. They are native to the Pacific Ocean.

Contents

Taxonomy

Lythrichthys was first described as a genus in 1904 by the American ichthyologists David Starr Jordan and Edwin Chapin Starks as a monotypic genus for Lythrichthys eulabes which they described with a type locality given as off Ose Point in Suruga Bay in Japan. [1] [3] L. eulabes was later placed in the genus Setarches and Lythrichthys became a synonym of that taxon. However, in 2021 Wada, Kai & Motomura resurrected the genus, added L. cypho (which had been treated as a synonym ofSetarches longimanus), as well as L. longimanus, and described two new species. This left the channelled rockfish (Setarches guentheri) as the only species in the now monotypic Setarches As of January 2022 this change has been accepted by Catalog of Fishes. [1] The genus name is a compound of lythrum, which means "gore", alluding to red colour of the body of living L. eulabes, and ichthys, Greek for "fish". [4]

Species

The following 5 species are classified within the genus Lythrichthys: [3]

Characteristics

Lythrichthys deepwater red scorpionfishes are characterised by typically having 3 spines and 5 soft rays in the anal fin, although there may be as few as 4 or as many as 6 anal soft rays/ they have 7-12 predorsal scales. The body depth at the origin of the pelvic fin is 29.1% to 38.6% of the standard length and the interorbital area has a width at the vertical midline of eye of 8.1% to 12.9% of the standard length. The snout, dorsal and ventral surface of head have no scales. No less than 75% of the lateral surface of premaxilla is covered by a well-developed lip. the first lacrimal spine is well developed and is roughly the same length as the second and third spines. There are 5 preopercular spines, with the second being much less well developed than the first and third which are also much longer than the fourth and fifth spines which are subequal in length. The tip of the first lacrimal spine just extends over the upper lip< the scales on the thorax and abdomen are clearly embedded in the skin. they have a well developed swim bladder. [5]

Distribution

Lythrichthys deepwater red scorpionfishes are found in the Indo-West Pacific as far north as Japan and south to Australia and west as far as Fiji. [2]

Related Research Articles

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

Setarchinae, the deep-sea bristly scorpionfishes, is a small subfamily of deep-sea ray-finned fishes, it is part of the family Scorpaenidae. They are small marine fishes, growing up to 25 cm, and are found in tropical and subtropical waters throughout the world.

<i>Scorpaenodes</i> Genus of fishes

Scorpaenodes is a widespread genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. The fishes in this genus are found to the Atlantic, Indian and Pacific Ocean.

<i>Sebastapistes</i> Genus of fishes

Sebastapistes is a genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. The fishes in this genus are found in the Indian and Pacific Ocean.

<i>Scorpaenopsis</i> Genus of fishes

Scorpaenopsis is a genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. The fishes in this genus are found in the Indian and Pacific Ocean.

<i>Pteroidichthys</i> Genus of fishes

Pteroidichthys is a genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. The scorpionfishes in this genus are distributed in the Indian and Pacific Oceans.

<i>Ebosia</i> Genus of fishes

Ebosia is a genus of marine ray-finned fishes belonging to the family Scorpaenidae, the scorpionfishes. They are known as falcate lionfishes. They are native to the Indian and Pacific Oceans.

Phenacoscorpius, the no-lined scorpionfishes, is a genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. They are native to the western Atlantic, Pacific and Indian oceans.

Pogonoscorpius is a genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is a monotypic genus, its ony species is Pogonoscorpius sechellensis which occurs in the western Indian Ocean in the seas around the Seychelles. It is a little known species and, as of 2018, only 2 specimens were known from the Seychelles. It may also occur in the Coral Sea and off Japan and it has been suggested that this taxon is a synonym of Rhinopias argoliba. Others treat it as a valid species and state that it is endemic to the western Indian Ocean.

The spotfin scorpionfish is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is known from the western Indian Ocean This species is the only known member of the genus Neoscorpanea.

<i>Pteroidichthys amboinensis</i> Species of fish

Pteroidichthys amboinensis, the Ambon scorpionfish or Godfrey's scorpionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is found in the Indian and Pacific oceans.

<i>Rhinopias frondosa</i> Species of fish

Rhinopias frondosa, the weedy scorpionfish or the weed fish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. This species is found in the Indo-West Pacific. It is a rare but highly desirable fish in the aquarium trade.

<i>Rhinopias aphanes</i> Species of fish

Rhinopias aphanes, the lacy scorpionfish, weedy scorpionfish or Merlet's scorpionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. This species is found in the Western Pacific. It occasionally makes its way into the aquarium trade.

<span class="mw-page-title-main">Barchin scorpionfish</span> Species of fish

The barchin scorpionfish is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It comes from the Indo-Pacific. The species is commonly seen in areas with mixed sand and rubble in reef flats, shallow lagoons, and channels.

<i>Neosebastes</i> Genus of fishes

Neosebastes is a genus of marine ray-finned fishes, belonging to the subfamily Neosebastinae, the gurnard scorpionfishes, part of the family Scorpaenidae. These fishes are found in the Indian and Pacific Ocean.

<i>Trachyscorpia</i> Genus of fishes

Trachyscorpia is a genus of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. The species in this genus are found in the Atlantic, Indian and Pacific oceans.

Lioscorpiusis a genus of marine ray-finned fish, belonging to the subfamily Setarchinae, the deep-sea bristly scorpionfishes, part of the family Scorpaenidae. They are native to the western Pacific Ocean.

<i>Minous</i> Genus of fishes

Minous, is a genus of marine ray-finned fishes, it is the only genus in the tribe Minoini, one of the three tribes which are classified within the subfamily Synanceiinae within the family Scorpaenidae, the scorpionfishes and their relatives. They are commonly known as stingfishes. They are found in the Indo-West Pacific.

<span class="mw-page-title-main">Channelled rockfish</span> Genus of fishes

The channelled rockfish, commonly known as the deepwater scorpionfish, is a marine ray-finned fish belonging to the subfamily Setarchinae, which is a part of the family Scorpaenidae. This species is found in various tropical and subtropical oceans and has a wide distribution.

<span class="mw-page-title-main">Spinycheek scorpionfish</span> Species of fish

The spinycheek scorpionfish, also known as Hemingway's scorpionfish, is a species of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It is found in the western Atlantic Ocean.

<i>Scorpaenodes guamensis</i> Species of fish

Scorpaenodes guamensis, the Guam scorpionfish or common scorpionfish, is a species of venomous, marine, ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. It has a wide Indo-Pacific distribution.

References

  1. 1 2 3 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Setarchidae". Catalog of Fishes . California Academy of Sciences . Retrieved 3 January 2022.
  2. 1 2 Wada, H.; Y. Kai & H. Motomura (2021). "Revision of the resurrected deepwater scorpionfish genus Lythrichthys Jordan and Starks 1904 (Setarchidae), with descriptions of two new species". Ichthyological Research. 68 (3): 373–403. doi:10.1007/s10228-020-00793-z.
  3. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Lythrichthys". Catalog of Fishes . California Academy of Sciences . Retrieved 3 January 2021.
  4. ↑ Christopher Scharpf & Kenneth J. Lazara, eds. (22 May 2021). "Order Perciformes (Part 8): Suborder Scorpaenoidei: Families Sebastidae, Setarchidae and Neosebastidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 3 January 2022.
  5. ↑ Bray, D.J. (2021). "Lythrichthys". Fishes of Australia. Museums Victoria. Retrieved 3 January 2022.
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