The spiny dogfish, spurdog, mud shark, or piked dogfish is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order.
The name spiny eel is used to describe members of two different families of fish: the freshwater Mastacembelidae of Asia and Africa, and the marine Notacanthidae. Both are so-named because of their eel-like shape and sturdy fin spines. These two families are not related: the Notacanthiformes belong to the Superorder Elopomorpha, whose members are characterized by having leptocephalus larvae. The freshwater Mastacembelids do not share this characteristic and are popular specimens in the aquarium trade.
The fire eel is a relatively large species of spiny eel. This omnivorous freshwater fish is native to in Southeast Asia but is also found in the aquarium trade. Although it has declined locally by overfishing, because of this trade it remains common overall.
Macrognathus is a genus of eel-like fish of the family Mastacembelidae of the order Synbranchiformes.
The zig-zag eel, also known as the tire-track eel, tire-track spiny eel or marbled spiny eel, is a species of ray-finned, spiny eels belonging to the genus Mastacembelus of the family Mastacembelidae, and is native to the riverine fauna of India, Bangladesh, Pakistan, Sri Lanka, Thailand, Vietnam, Indonesia and other parts of Southeast Asia. The species was described as Macrognathus armatus by Lacepède in 1800. Other common names for this popular aquarium species are leopard spiny eel and white-spotted spiny eel. This species is not only a popular aquarium fish but also as a food fish in its country of origin.
The green labeo or mountain labeo, is a species of freshwater fish in the family Cyprinidae. It is found only in Sri Lanka, where it occurs in streams in the basin of the Mahaweli River.
Labeo lankae is a species of cyprinid fish. It is endemic to Sri Lanka.
Lepidocephalichthys jonklaasi, known as the Jonklaas's loach or the spotted loach, is an endemic fish species restricted to the wet zone of Sri Lanka. The species was first recorded from the Wilpita area. It is currently known from 12 locations in the wet zone including Beraliya, Dombagaskandha, Madakada, Gilimale, Hiyare, Kottawa, Kanneliya, Weddagala, Nakiyadeniya, Pahiyangala and Boralugoda. It is recorded from a wide range of altitudes. Due to its restricted range and the threats to its habitat Lepidocephalichthys jonklaasi, is listed as an Endangered species. The species has already begun to disappear from some of the sites mentioned above due to destruction and fragmentation of its habitat and many other threats that are operating on the species.
The Peacock Eel or Spotfin Spiny Eel is a spiny eel found in freshwater habitats throughout Southeast Asia. They are commercially important as food and aquarium fish.
Mastacembelus ellipsifer is a species of spiny eel that is endemic to Lake Tanganyika in Africa and sometimes kept in aquariums. Although sometimes called the Tanganyikan spiny eel, it is only one of fifteen spiny eel species in the Tanganyikan basin.
Pethia cumingii, known as the Cuming's barb or the two spot barb, is a species of cyprinid fish endemic to Sri Lanka.
Macrognathus pancalus, the barred spiny eel or Indian spiny eel, or পাঁকাল in bengali is a small freshwater fish in southern Asia. It usually is found in slow and shallow rivers. Males are more slender and often smaller than the females.
Lepidocephalichthys thermalis, known as the common spiny loach or the spotted loach, is a freshwater fish species found in India and Sri Lanka.
Ophisternon bengalense the Bengal eel, Bengal mudeel or onegill eel, is a species of fish in the family Synbranchidae. It is endemic to freshwater and brackish water rivers and swamps in Oceania and South Asia. It is normally 100 cm in maximum length.
Macrognathus aral, the one-stripe spiny eel, is a small fish from Pakistan, India, Bangladesh, Nepal and Myanmar. It usually is found in running and stagnant waters of freshwater and brackish waters. It is 63.5 cm (25.0 in) in length.
Awaous melanocephalus, the largesnout goby, is a species of goby that is native to fresh water rivers and streams of India, Sri Lanka, Ryukyu Islands, China, Taiwan, Vietnam, Thailand, Philippines, Indonesia, Papua New Guinea and Solomon Islands. Some suggestions has been recorded from Fiji islands and Mauritius, but not confirmed yet.
Epinephelus undulosus, the wavy-lined grouper, brown-lined reefcod, mid-water rockcod, mid-water grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has a wide Indo-Pacific distribution. They are produced through aquaculture and commercially fished.
Siganus insomnis, the bronze-lined spinefoot, is a species of marine ray-finned fish, a rabbitfish belonging to the family Siganidae. It is found in the northern central Indian Ocean. It had formerly been confused with S. lineatus, but was recognized as a separate species in 2014.
Macrognathus zebrinus, the zebra spiny eel, is a species of spiny eel endemic to Myanmar, specifically known from the Irrawaddy River, Sittaung River and Salween River and may also occur in Indonesia. It was originally described as Mastacembelus zebrinus before being moved to the genus Macrognathus in 1984 and 1986.
Macrognathus fasciatus is a species of spiny eel found in the Manimala River and first described in 2014. Macrognathus fasciatus differs from its relative species by the presence of 28–30 dorsal spines, 26–27 vertical lateral lines on the body, 8–9 whitish yellow round spots present in a row in between every two vertical lines and first dorsal spine originate at the level or a little behind the end of pectoral fin.
