Synbranchiformes, often called swamp eels, though that name can also refer specifically to Synbranchidae, is an order of ray-finned fishes that are eel-like but have spiny rays, indicating that they belong to the superorder Acanthopterygii.
Notacanthidae, the deep-sea spiny eels, are a family of fishes found worldwide below 125 m (410 ft), and as deep as 3,500 m (11,500 ft).
Mastacembelus is a genus of many species of spiny eel fish from the family Mastacembelidae. They are native to Africa and Asia. Most are found in rivers and associated systems, but there are also species in other freshwater habitats and a particularly rich radiation is found in the Lake Tanganyika basin with 15 species. A few species can even occur in brackish water.
The Moringuidae are a small family of eels commonly known as spaghetti eels or worm eels, although the latter name is also shared with other families of eels.
Macrognathus is a genus of eel-like fish of the family Mastacembelidae of the order Synbranchiformes.
Sinobdella sinensis is an East Asian species of the spiny eel family of the order Synbranchiformes. It is the only species in the genus Sinobdella according to FishBase, but another species, S. dienbienensis, is placed there by Catalog of Fishes.
Mastacembelus platysoma is a species of fish, a spiny eel in the family Mastacembelidae. It is found in Lake Tanganyika which is bordered by Burundi, the Democratic Republic of the Congo, Tanzania and Zambia. The IUCN has listed it as being of "Least Concern".
Indostomus is a genus of small fishes native to slow moving or stagnant freshwater habitats in Indochina. It is the sole genus of the monogeneric family Indostomidae, Long considered to be sticklebacks, within the order Gasterosteiformes, modern analyses place the Indostomids within the order Synbranchiformes, related to the spiny eels and swamp eels.
Notacanthus is a genus of spiny eels in the family Notacanthidae.
Lipogenys gillii, the blackfin tapirfish, is a species of spiny eel in the family Notacanthidae, the only member of its genus. It is a benthic deep-sea fish occurring along the eastern coast of North America and in the southwestern Pacific near Australia at depths from 400 to 2,000 m.
Polyacanthonotus is a genus of spiny eels, with these currently recognized species:
The Congrinae are a subfamily of eels in the family Congridae.
Brotula is a genus of cusk-eels. It is the only genus in the subfamily Brotulinae.
Bathymyrinae is a subfamily of marine ray-finned fishes belonging to the family Congridae, which includes the conger and garden eels. The eels of this subfamily are most diverse in the Indo-Pacific region but are also found in both the Eastern and Western Atlantic Oceans.
Myrophinae, the worm eels, is a subfamily of ray-finned fishes belonging to the family Ophichthidae, which also includes the snake eels in the subfamily Ophichthinae.
Congroidei is a suborder of ray-finned fishes belonging to the order Anguilliformes, the eels. These eels are mostly marine, although a few species of snake eel will enter freshwater, and they are found in tropical and tempareate waters throughout the world.
Apsilus is a small genus of marine ray-finned fish, snappers belonging to the family Lutjanidae. The two species within the genus are native to the Atlantic Ocean,
Synbranchinae is a subfamily of swamp eel, consisting of six of the ten genera in the family Synbranchidae. The remaining genus, the monotypic Macrotrema is the only one in the other subfamily Macrotreminae. The subfamily occurs in the Neotropics, Afrotropics and Asia.
Sebastolobini is a tribe of marine ray-finned fishes belonging to the subfamily Sebastinae of the family Scorpaenidae in the order Scorpaeniformes. Many species have the common name thornyhead.
Pterygotriglinae is a subfamily of demersal, marine ray-finned fishes, part of the family Triglidae, the gurnards and searobins. These gurnards are found in the Indo-Pacific region.
