| Lasiognathus waltoni | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Lophiiformes |
| Family: | Thaumatichthyidae |
| Genus: | Lasiognathus |
| Species: | L. waltoni |
| Binomial name | |
| Lasiognathus waltoni Nolan & Rosenblatt, 1975 | |
Lasiognathus waltoni is a species of marine ray-finned fish belonging to the family Thaumatichthyidae, the wolftrap anglers. This species is known only from the eastern central Pacific Ocean.
Lasiognatus waltoni was first formally described in 1975 by the ichthyologists Ronald Scott Nolan and Richard Heinrich Rosenblatt with its type locality given as the Caribbean Sea, approximately 98 km (61 mi) the northern central Pacific, to the northeast of the Hawaiian Islands ], at 30°39.1'N, 155°23.4'W or 30°39.2'N, 155°18.1'W, from a depth of 0–1,350 m (0–4,429 ft) where the sea was 5,661 m (18,573 ft) deep. [2] The genus Lasiognathus is classified by the 5th edition of Fishes of the World in the family Thaumatichthyidae within the suborder Ceratioidei of the anglerfish order Lophiiformes. [3]
Lasiognathus waltoni is a member of the genus Lasiognathus, this name is a combination of lasios, meaning "bearded", and gnathus, which means "jaw". This may be a reference to the many long teeth in the upper jaw, goving the appearance of a beard. The specific name honours Sir Izaak Walton, the author of The Compleat Angler , so this is an aglerfish named in honour of a famous angler. [4]
Lasiognathus waltoni has its dorsal fin supported by 7 or 7 soft rays while the anal fin contains 4 or 5 soft rays. The species in Lasiognathus are identified from one another by the morphology of their esca and in this species the bulb of the esca has a membrane-like crest on its front. The appendage on the tip has a cylindrical stalk with thin filaments along its edge but no filaments emerging from the bases of the escal hooks. The appendage on the rear of the esca is broad and laterally flattened. The illicium emerges from under the escal pore. The only kbown specimen, the holotype, of this species had a standard length of 9.4 cm (3.7 in). [5]
Lasiognathus waltoniis known from a single specimen collected from near Oahu in 1972 from a depth of between 0 and 1,350 m (0 and 4,429 ft). [1]
Krøyer's deep sea angler fish, also known as the deep-sea angler, longray seadevil or northern seadevil, is a species of marine ray-finned fish belonging to the family Ceratiidae, the warty seadevils. It is found throughtout the oceans of the world from tropical to polar seas. It is the largest species in its family.
Thaumatichthyidae, the wolftrap anglers, is a small family of marine ray-finned fishes, also called the wolftrap seadevils, classified within the suborder Ceratioidei, the deep-sea anglerfishes. They have distinctive upper jaws with movable premaxillaries that can be lowered to form a cage-like trap around the much shorter lower jaw.
The bulbous dreamer, or cosmoplitan dreamer, is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. This fish has a circumglobal distribution in tropical and temperate oceans.
Lasiognathus saccostoma is a species of marine ray-finned fish belonging to the family Thaumatichthyidae, the wolftrap anglers. This species is known from the eastern central Pacific Ocean and tropical waters of the Atlantic Ocean.
The complete anglerfish (Lasiognathus) is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with six species known from the Atlantic and Pacific Oceans. Its lure apparatus appears to consist of a fishing rod, a fishing line, bait, and hooks. It is also distinctive for an enormous upper jaw with premaxillaries that can be folded down to enclose the much shorter lower jaw.
Lasiognathus amphirhamphus is a species of marine ray-finned fish belongning to the family Thaumatichthyidae, the wolftrap anglers. This species was first formally described in 2005 by the American ichthyologist Theodore Wells Pietsch III and is known from a single Zoological specimen, the holotype, collected from the Madeira Abyssal Plain in the east-central Atlantic Ocean where it occurs at a depth of from 1,200 to 1,305 metres. The holotype, a female, had a standard length of 15.7 cm (6.2 in). This species is characterized by having only two bony hooks on its esca, which are lightly pigmented. The distal escal appendage is elongated and cylindrical with a long, compressed prolongation at the tip as in L. saccostoma. The prolongation has six tiny filaments at the tip and no lateral serrations. The posterior escal appendage is broad and laterally compressed. Its species name is from the Greek for "double hook", referring to its escal hooks.
Lasiognathus beebei is a species of marine ray-finned fish belongning to the family Thaumatichthyidae, the wolftrap anglers. This species is known from around the Hawaiian Islands in the Pacific Ocean and from around Madeira and Bermuda in the Atlantic.
Lasiognathus intermedius is a species of marine ray-finned fish belonging to the family Thaumatichthyidae, the wolftrap anglers. This species is known from the deeper waters of the Atlantic and Pacific Oceans.
Caulophryne polynema is a species of marine ray-finned fish belonging to the family Caulophrynidae, the fanfins. This species is a deepwater species which is found in the Atlantic and Pacific Oceans. Like other deepwater anglerfishes it shows extreme sexual dimorphism with the males being much smaller than the females and acting as sexual parasites of the females.
Robia is a monospecific genus of marine ray-finned fish belonging to the family Caulophrynidae, the fanfins. Its only species is Robia legula which is known from a single specimen collected in the western central Pacific Ocean where it is found at depths of 1,000 to 1,500 metres.
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.
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.
Lasiognathus dinema is a species of marine ray-finned fish belonging to the family Thaumatichthyidae, the wolftrap anglers. This species is known only from the northern Gulf of Mexico.
Caulophryne pelagica is a species of marine ray-finned fish belonging to the family Caulophrynidae, the fanfins. This species is a deepwater species which is found in the eastern Atlantic, Indian Ocean, Pacific Ocean and Southern Ocean. Its biology is little known but similar species show extreme sexual dimorphism with the very small makes seeking out and attaching themselves to the much larger females and becoming parasites of the females.
Caulophryne jordani, the fanfin angler, is a species of marine ray-finned fish belonging to the family Caulophrynidae, the fanfins. This species is a deepwater species which is found in Oceanic waters around the world. Like other deepwater anglerfishes it shows extreme sexual dimorphism with the males being much smaller than the females and acting as sexual parasites of the females.
Ceratias tentaculatus, the southern seadevil, is a species of marine ray-finned fish belonging to the family Ceratiidae, the warty seadevils. This is bathydemersal species which can be found at depths ranging from 100 to 2,900 metres. It is restricted to the Southern Hemisphere.
Ceratias uranoscopus, the stargazing seadevil, is a species of marine ray-finned fish belonging to the family Ceratiidae, the warty sea devils. The fish is both bathypelagic and mesopelagic and can typically be found at depths ranging from 500 to 1,000 metres. It is endemic to tropical waters and can be found in the Atlantic, Pacific, and Indian Oceans.
Oneirodes carlsbergi is a species of marine ray-finned fish belonging to the family Oneirodidae, the dreamers, a family of deep-sea anglerfishes. This fish is found mainly in the tropical eastern Atlantic and Pacific Oceans.
Gigantactis elsmani, Elsman's whipnose, 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 Atlantic and Pacific Oceans.
Chaenophryne melanorhabdus is a species 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 Pacific Ocean. Like other deep-sea anglerfishes dreamers are sexually dimorphic with the matamorphosed females dwarfing the metamorphosed males, the males are not sexual parasites.
