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The marbled swamp eel, Synbranchus marmoratus, has been recorded at up to 150 cm (59 in) in length, [5] while the Bombay swamp eel, Monopterus indicus, reaches no more than 8.5 cm (3.3 in). Swamp eels are almost entirely finless; the pectoral and pelvic fins are absent, the dorsal and anal fins are vestigial, reduced to rayless ridges, and the ...
The Asian swamp eel is a freshwater, eel-like fish belonging to the family Synbranchidae (swamp eels). [ 4 ] Some work indicates that the species should be split into three geographical clades or cryptic species , although these were not given nomenclatural names, as the taxonomic synonymy was too complex to sort out at the time.
Common name Scientific name Image Native Non-native Fresh water Salt water Notes African jewelfish: Hemichromis bimaculatus: African pompano: Alectis ciliaris: Also known as the pennant-fish and threadfin trevally. [4] African tigerfish: Hydrocynus vittatus: Alabama bass: Micropterus henshalli: Alabama shad: Alosa alabamae: Albacore: Thunnus ...
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.
The marbled swamp eel has an elongated cylindrical body and can grow to a maximum length of about 150 cm (60 in), although a more normal adult length is 50 cm (20 in). The dorsal and anal fins are vestigial and the paired pectoral and pelvic fins are missing altogether. [2]
Due to this, the genus name Ophichthys, previously coined by William Swainson, was revived to be used for them. [1] [2] Ophichthys was formerly a wastebasket taxon used to lump in many unrelated species of eel-like fish (all of which are classified in separate genera today) and later synonymized with Monopterus until its resurrection. [3]
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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. [2]