Dermatias

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Dermatias
Dermatias platynogaster SI.jpg
Dermatias platynogaster X-ray.jpg
Dermatias platynogaster, conventional and X-ray images
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Lophiiformes
Family: Oneirodidae
Genus: Dermatias
H. M. Smith & Radcliffe, 1912
Species:
D. platynogaster
Binomial name
Dermatias platynogaster
H. M. Smith & Radcliffe, 1912
Synonyms [2]
  • Dolopichthys platynogaster (H. M. Smith & Radcliffe, 1912)
  • Pietschichthys horridus Kharin, 1989

Dermatias is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. The only species in the genus is Dermatias platynogaster which is known from 4 metamorphosed female specimens collected from 3 widley sparated localities in the Western Pacific Ocean.

Contents

Taxonomy

Dermatias was first proposed as a genus in 1923 by the American ichthyologists Hugh McCormick Smith and Lewis Radcliffe with its only species, D. platynogaster, designated as its type species. [3] D. platynogaster was described by McCormick and Radcliffe with its type locality given as near Sialat Point Light off the eastern coast of Luzon at 13°40'57"N, 123°57'45"E, Albatross station D.5463 in the Philippines at a depth of 300 fathoms (1,800 ft; 550 m). [4] The 5th edition of Fishes of the World classifies this taxon in the family Oneirodidae in the suborder Ceratioidei of the anglerfish order Lophiiformes. [5]

Etymology

Dermatias means "one who has skin", an allusion to the kine being "naked, very loose, and soft". The specific name platynogaster combines platyno, which means "to widen", with gaster, meaning "stomach", thought to be a reference to the "ventral surface greatly decurved, the very large stomach hanging down like a great pouch". [6]

Description

Dermatias has 6 soft rays in its dorsal fin and 4 in its anal fin. [2] The males and larvae of this species have not been collected and the species is only known from 4 female specimens. [1] The metamorphosed females differ from other species of oneirodids in the unusually deep caudal peduncle, the blunt and short snout, the highly convex frontal bones which create a very short head and they have a smaller number of teeth in the jaws, between 20 and 32 in the upper jaw, 20 to 31 in the lower jaw. They also have vomerine teeth, large sphenotic spines which are directed outwards and upwards, a robust spine on the symphysis of the lower jaw, the hyomandibular has a double head, there is a large spine on the quadrate bone and an articular spine which is shorter than half the length of the spine on the quadrate. They also have a deeply incised rear margin of the operculum. there is a long, thin subopercle which has its dorsal end tapering to a point and an oval ventral end. There is no internal pigmentation on the fin rays of the caudal fin. The illicium is markedly longer than the length of bulb of the esca and its pterygiophore emerges on the snout between the frontal bones with its front end exposed and its rear end hidden beneath the skin. The skin is apparently naked lacking in dermal spinules and the dark pigmented skin of the caudal peduncle clearly reaches past the base of the caudal fin. The maximum published standard length of 17.5 cm (6.9 in). [2]

Distribution and habitat

Dermatias has been recorded from three widely scattered localities in the Western Pacific Ocean. Apart from the type locality it has been recorded from the Townsville trough off northeastern Australia and the Magellan Seamounts. The specimens have been collected from depths between 539 and 1,342 m (1,768 and 4,403 ft). [1]

Related Research Articles

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

Ceratiidae, the warty sea devils, caruncled seadevils or seadevils, are a family of marine ray-finned fishes belonging to the suborder Ceratioidei, the deep-sea anglerfishes, in the anglerfish order Lophiiformes. The warty sea devils are sexually dimorphic with the small males being obligate sexual parasites of the much larger females. The fishes in this family are widely distributed from polar to tropical seas around the world.

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

Oneirodidae, the dreamers are a family of marine ray-finned fishes belonging to the order Lophiiformes, the anglerfishes. These fishes are deepwater fishes found in the Atlantic, Indian and Pacific Oceans, and it is the most diverse family of fishes in the bathypelagic zone.

Bertella is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. The only species in the genus is Bertella idiomorpha and this can be distinguished from other members of the family by the structure of its hyomandibular bone.

<i>Tyrannophryne</i> Monotypic genus of fish

Tyrannophryne is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. The only species in the genus is Tyrannophryne pugnax, the tyrant devil. Like other oneirodids, T. pugnax is a bathypelagic fish with a bioluminescent lure. It is known only from two adolescent female specimens, one caught in 1928 near Tahiti-Rarotonga, and the other in 1956 northwest of Bikini Atoll.

<i>Borophryne</i> Species of fish

Borophryne apogon, the netdevil or greedy seadevil, is a species of leftvent anglerfish known today from the waters of the eastern Pacific Ocean off the Central American coast. It is found at depths down to around 1,750 m (5,700 ft). This species grows to a length of 8.3 centimetres (3.3 in) TL. A fossil specimen of this species has been found in the Los Angeles Basin dating back to the Late Miocene, some eight million years ago.

<i>Chaenophryne</i> Genus of fishes

Chaenophryne is a genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. These predatory, deep-sea fishes are found in the tropical and subtropical oceans around the world. Like other deep-sea anglerfishes, they are sexually dimorphic, with the matamorphosed females dwarfing the metamorphosed males. The males are not sexual parasites.

Chirophryne is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. The only species in the gneus is Chirophryne xenolophus, the longhand dreamer. This species is known from a few locations in the Atlantic and Pacific Oceans.

Ctenochirichthys is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. The only species in the genus is Ctenochirichthys longimanus is known only from two locations, on in the Atlantic Ocean and the other in the Western Pacific Ocean.

<i>Danaphryne</i> Monotypic genus of fish

Danaphryne is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. The only species in the genus is Danaphryne nigrifilis which is found in the tropical and temperate regions of all of the world's oceans.

Dolopichthys is a genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. These predatory, deep-sea fishes are found in the tropical and subtropical oceans around the world.

<span class="mw-page-title-main">Plainchin dreamarm</span> Species of fish

The plainchin dreamarm is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. It is the only species in the monospecific genus Leptacanthichthys. This species occurs in the North Atlantic and North Pacific Oceans at depths down to 2,000 m (6,600 ft).

Lophodolos is a genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. These predatory, deep-sea fishes are found in the tropical and subtropical oceans around the world.

Microlophichthys microlophus, the short-rod anglerfish, is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. This anglerfish is found in the deeper waters of the tropical and temperate oceans around the world.

Microlophichthys is a genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. The species in this genus are found in the tropical and subtropical parts of the Atlantic, Indian and Pacific Oceans.

<i>Oneirodes</i> Genus of fishes

Oneirodes is a genus of is a genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. These predatory, deep-sea fishes are found around the world. This is the type genus, and the most speciose genus, of the family Oneirodidae. They are sexually dimorphic but, like most taxa within their family, the small males are free living and are not sexual parasites on the larger females. Only the females are used to identify the species in this genus as no species specific charaxcters have been found for males.

<i>Puck pinnata</i> Species of fish

Puck pinnata, the mischievous dreamer, is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. This species is known from four metamorphosed female specimens each collected from four separate locations, three in the Pacific Ocean and one in the Atlantic Ocean. As with all other species in the family, it is a pelagic, deep-water fish that is a member of the abyssal ecosystem. It is the only known species in the monospecific genus Puck.

<i>Pentherichthys</i> Monotypic genus of fish

Pentherichthys is a monospecific genus of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. The only species in the genus is Pentherichthys atratus which is found in the bathypelagic zones of the tropical and subtropical Atlantic, Indian and Pacific Oceans. The males of this species are dwarfed and are not parasitic on the females.

<i>Chaenophryne draco</i> Species of fish

Chaenophryne draco, the smooth dreamer, or smooth-headed dreamer, is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. This predatory, deep-sea fish is found in the tropical and subtropical oceans around the world. Like other deep-sea anglerfishes, it is sexually dimorphic, with the matamorphosed females dwarfing the metamorphosed males. The males are not sexual parasites.

<i>Chaenophryne longiceps</i> Species of fish

Chaenophryne longiceps, the can-opener smoothdream, longhead dreamer or smooth-head dreamer, is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep sea anglerfishes. This predatory, deep-sea fish is found in tropical and subtropical oceans around the world. Like other deep-sea anglerfishes, it is sexually dimorphic with the metamorphosed females dwarfing the metamorphosed males, though the males are not sexual parasites.

Gigantactis kreffti is a species of marine ray-finned fish belonging to the family Gigantactinidae, the whipnose anglers. This species is found in the deeper waters of the South Atlantic and Western Pacific Oceans.

References

  1. 1 2 3 Carpenter, K.E.; Matson, C. & Rivera Higueras, M. (2019). "Dermatias platynogaster". IUCN Red List of Threatened Species . 2019: e.T140348310A140858998. doi: 10.2305/IUCN.UK.2019-3.RLTS.T140348310A140858998.en . Retrieved 12 July 2024.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.). "Dermatias platynogaster". FishBase . February 2024 version.
  3. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Oneirodidae". Catalog of Fishes . California Academy of Sciences . Retrieved 14 July 2024.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Dermatias". Catalog of Fishes . California Academy of Sciences . Retrieved 14 July 2024.
  5. ↑ Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 508–518. doi:10.1002/9781119174844. ISBN   978-1-118-34233-6. LCCN   2015037522. OCLC   951899884. OL   25909650M.
  6. ↑ Christopher Scharpf (3 June 2024). "Order LOPHIIFORMES (part 2): Families CAULOPHRYNIDAE, NEOCERATIIDAE, MELANOCETIDAE, HIMANTOLOPHIDAE, DICERATIIDAE, ONEIRODIDAE, THAUMATICHTHYIDAE, CENTROPHRYNIDAE, CERATIIDAE, GIGANTACTINIDAE and LINOPHRYNIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. Retrieved 14 July 2024.
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