Halieutopsis | |
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A Broad-snout deepsea batfish ( Halieutopsis bathyoreos ) from off Christmas Island in the eastern Indian Ocean, July 2021 | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Lophiiformes |
Family: | Ogcocephalidae |
Genus: | Halieutopsis Garman, 1899 |
Type species | |
Halieutopsis tumifrons Garman, 1899 |
Halieutopsis is a genus of marine ray-finned fishes beloning to the family Ogcocephalidae, the deep sea batfishes. The species in this genus are found in the Indian and Pacific Oceans.
Halieutopsis was first proposed as a monospecific genus in 1899 by the American zoologist Samuel Garman when he described, [1] giving its type locality given as off the Galapagos Islands. [2] This genus is classified within the "Indo-Pacific clade" of the family Ogcocephalidae. [3] The family Ogcocephalidae is classified in the monotypic suborder Ogcocephaloidei within the order Lophiiformes, the anglerfishes in the 5th edition of Fishes of the World . [4]
Halieutopsis suffixes opsis, meaning "looking like" to halieut which is derived from halieutaea, Greek for an "angler" or "fisherman". This name is a reference to this genus' resemblance to the genus Halieutaea . [5]
There are currently seventeen recognized species in this genus: [6] [7]
Many authorities treat H. vermicularis as a synonym of H. nasuta. [2] [9]
Halieutopsis are distinguished from other Ogcocephaline genera by having no gill filaments on the third and fourth gill arches with teeth typically being found on the fifth ceratobranchial, where they are divided into two well separated, small patches. The illicium is relatively simple and resembles a spine and doe not have a cavity at its base. The esca has two large lateral lobes and a dorsal, middle lobe which typically has cirrhi or skin flaps. The base of the pectoral fin are widely connected to the body. The lateral line is broken, with the part towards the tail runs along the lower body and reaches to just in front of or past the anus with between one and six neuromasts on each side of the anus. [11] The batfishes in this genus are relatively small, typically having standard length of less than 100 mm (3.9 in), [9] with the largest species being H. nasuta with a maximum published total length of 140 mm (5.5 in). [12]
Halieutopsis batfishes are found in the Indian Ocean and the western and eastern Pacific Oceans [6] in temperate to tropical regions on continental shelves, slopes, and in deeper waters of the Indo-Pacific at depths of between approximately 100 and 4,020 m (330 and 13,190 ft). [11]
Ogcocephalidae is a family of anglerfish specifically adapted for a benthic lifestyle of crawling about on the seafloor. Ogcocephalid anglerfish are sometimes referred to as batfishes, deep-sea batfishes, handfishes, and seabats. They are found in tropical and subtropical oceans worldwide. They are mostly found at depths between 200 and 3,000 m, but have been recorded as deep as 4,000 m (13,000 ft). A few species live in much shallower coastal waters and, exceptionally, may enter river estuaries.
Malthopsis, the gnome batfishes or triangular batfishes, is a genus of marine ray-finned fishes belonging to the family Ogcocephalidae, the deep sea batfishes. The triangular batfishes are distributed throughout the warmer waters of the world, although they are absent from the Eastern Atlantic Ocean. The genus was originally proposed in 1891 by the British naturalist Alfred W. Alcock.
Coelophrys is a genus of marine ray-finned fishes belonging to the family Ogcocephalidae, the deep-sea batfishes or sea bats. The fishes in this genus are found in the western Pacific Ocean and the Indian Ocean.
Dibranchus is a genus of marine ray-finned fishes belonging to the family Ogcocephalidae, the deep sea batfishes. The fishes in this genus are widely distributed in the Atlantic, Indian and Pacific Oceans.
Solocisquama is a genus of marine ray-finned fishes belonging to the family Ogcocephalidae, the deep sea batfishes. The species in this genus are benthic fishes found in deep waters in the Indian and Pacific Oceans.
Halieutopsis andriashevi, Andriashev's deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the western Indian Ocean.
Halieutopsis bathyoreos, broad-snout deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish has a widespread distribution in deeper waters in the Indo-West Pacific region as far east as Hawaii.
Halieutopsis galatea, the Galathea deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the Indian Ocean.
Halieutopsis ingerorum, Ingers' deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the western Indian Ocean.
Halieutopsis echinoderma, the spiny deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the Western Pacific Ocean.
Halieutopsis kawaii, Kawai's deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the Western Pacific Ocean.
Halieutopsis murrayi, Murray's deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the Western Indian Ocean and was first described to science in 2021 from a holotype collected in the 20th century.
Halieutopsis okamurai, Okamura's deepsea batfish, is a little known species of marine ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This species is found in the northwestern Pacific Ocean, and is known only from a single specimen collected between the Ogasawara Islands and Izu islands in 1968.
Halieutopsis margaretae, Margaret's deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the Western Pacific Ocean.
Halieutopsis oblonga, the oblong deep-sea batfish, is a species of marine ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This species is found in the Western Pacific Ocean.
Halieutopsis stellifera, the starry deepsea batfish, is a species of marine ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This species is found in the Indo-West Pacific region.
Halieutopsis simula, the fluffy-esca deepsea batfish, is a species of marine ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This species is found in the Indo-West Pacific region.
Halieutopsis tumifrons,the truncate-snout deepsea batfish, is a species of marine ray-finned fish belonging to the family Ogcocephalidae, the deep-sea batfishes. This species is the type species of the genus Halieutopsis. It is a little known species only known from the two type specimens collected off the Galápagos Islands in 1890.
Halieutopsis nasuta, the big-nosed deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. This fish is found in the Indian and Pacific Oceans. H. nasuta is classified within the genus Dibranchus by some authorities, but is generally considered to belong in the genus Halieutopsis.
Halieutopsis nudiventer, the naked-belly deepsea batfish, is a species of ray-finned fish belonging to the family Ogcocephalidae, the deep sea batfishes. It was originally found in the eastern Indian Ocean around the Bay of Bengal, but is now known to have a wider distribution in the Indo-Pacific.