| Eptatretus goliath | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Myxini |
| Order: | Myxiniformes |
| Family: | Myxinidae |
| Genus: | Eptatretus |
| Species: | E. goliath |
| Binomial name | |
| Eptatretus goliath Mincarone & Stewart, 2006 | |
Eptatretus goliath, the goliath hagfish, is the largest hagfish.
It lives in the Southwest Pacific Ocean off the coast of New Zealand. [2]
Hagfish, of the class Myxini and order Myxiniformes, are eel-shaped jawless fish. Hagfish are the only known living animals that have a skull but no vertebral column, although they do have rudimentary vertebrae. Hagfish are marine predators and scavengers who can defend themselves against other larger predators by releasing copious amounts of slime from mucous glands in their skin.
Cyclostomi, often referred to as Cyclostomata, is a group of vertebrates that comprises the living jawless fishes: the lampreys and hagfishes. Both groups have jawless mouths with horny epidermal structures that function as teeth called ceratodontes, and branchial arches that are internally positioned instead of external as in the related jawed fishes. The name Cyclostomi means "round mouths". It was named by Joan Crockford-Beattie.
Eptatretus springeri, the Gulf hagfish, is a bathydemersal vertebrate which lives primarily in the northeastern Gulf of Mexico. It has been observed feeding at and around brine pools: areas of high salinity which resemble lakes on the ocean floor that do not mix with the surrounding water due to difference in density. The high salt content, approximately 200 ppt compared to 35 ppt for standard seawater, creates a buoyant surface which renders oceanic submersibles unable to descend into the pool. It is believed that the inside of the pools only supports microbial life, while the majority of macroscopic life, such as methane-utilizing mussels, exists on the edges. The Gulf hagfish feeds on the primary producers of these environments, as well as other predators.
The broadgilled hagfish or New Zealand hagfish, also known by its Māori language name tuere, is a hagfish found around New Zealand and the Chatham Islands as well as around the south and east coasts of Australia, at depths between 1 and 900 metres.
The Pacific hagfish is a species of hagfish. It lives in the mesopelagic to abyssal Pacific Ocean, near the ocean floor. It is a jawless fish and has a body plan that resembles early Paleozoic fish. They are able to excrete prodigious amounts of slime in self-defense.
Eptatretus strickrotti, commonly known as Strickrott's hagfish, is a hagfish of the genus Eptatretus, found in the depths of the Pacific Ocean south of Easter Island. The hagfish was found in March 2005 by DSV Alvin pilot Bruce Strickrott, and a year later was determined by scientists to be a new species. It is the first hagfish recorded from a hydrothermal vent.
Eptatretus is a large genus of hagfish.
The inshore hagfish is a hagfish found in the Northwest Pacific, from the Sea of Japan and across eastern Japan to Taiwan. It has six pairs of gill pouches and gill apertures. These hagfish are found in the sublittoral zone. They live usually buried in the bottom mud and migrate into deeper water to spawn. The inshore hagfish is the only member of the Myxinidae family having a seasonal reproductive cycle.
Eptatretus bischoffii is a common hagfish of the genus Eptatretus. Its maximum length is 55 centimetres (22 in). It lives in a demersal, non-migratory, marine habitat with its depth range between 8–50 m. It can survive in only temperate zones. These organisms are found in the South Pacific, mainly, Chile. It is harmless to humans.
Myxine glutinosa, known as the Atlantic hagfish in North America, and often simply as the hagfish in Europe, is a species of jawless fish of the genus Myxine.
Eptatretus deani, the black hagfish, is a species of hagfish.
Rubicundus is a genus of hagfishes, the only extant member of the subfamily Rubicundinae. All species in it were formerly classified in Eptatretus. R. eos, R. lakeside, and R. rubicundus are known from single specimens caught in the Tasman Sea, Galápagos, and Taiwan, respectively. They are named after the distinctive red coloration that all species share.
Eptatretus hexatrema, the sixgill hagfish, or snotslang is a species of marine fish in the hagfish family of order Myxiniformes. It is native to the South Atlantic Ocean and southwestern Indian Ocean.
Eptatretus polytrema, the fourteen-gill hagfish or Chilean hagfish, is a demersal and non-migratory hagfish of the genus Eptatretus. It is found in muddy and rocky bottoms of the southeastern area of the Pacific Ocean near the coast of Chile between Coquimbo and Puerto Montt, at depths between 10 and 350 m. This hagfish can reach a length of 93 cm. It is only known from a few specimens and has not been recorded since 1988.
Eptatretus minor is a bathydemersal and non-migratory hagfish of the genus Eptatretus. It is found in the deep waters of the northern area of the Gulf of Mexico between Louisiana and Florida, at depths between 300 and 470 m. This hagfish is a relatively short and stout species, reaching a maximum length of nearly 40 cm. It is only known from a few specimens.
Archidactylina is a genus of copepods that contains only the species Archidactylina myxinicola, and is the only genus in the family Archidactylinidae. It is a parasite of the gill pouches of two species of hagfish found in Japanese waters, Eptatretus okinoseanus and Myxine garmani.
Myxine limosa, or Girard's Atlantic hagfish, is a jawless fish in the genus Myxine.
Rubicundus eos, also known as the pink hagfish, is a species of jawless fish in the family Myxinidae.
Rubicundus lakeside, the Lakeside hagfish, is a species of jawless fish in the family Myxinidae.
Rubicundus lopheliae, the lophelia hagfish, is a species of jawless fish in the family Myxinidae.
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