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The zig-zag eel (Mastacembelus armatus Scopoli, 1777 [3]), also known as the Baim, [4] tire-track, tire-track spiny-eel, freshwater spiny eel, or marbled spiny eel, [2] is a species of freshwater ray-finned fish in the family Mastacembelidae.
Mastacembelus is a genus of many species of spiny eel fish from the family Mastacembelidae.They are native to Africa (c. 45 species) and Asia (c. 15 species). [4] Most are found in rivers and associated systems (even in rapids [5]), but there are also species in other freshwater habitats and a particularly rich radiation is found in the Lake Tanganyika basin with 15 species (14 endemic).
In an evaluation of the family in 2004, the subfamilies of Mastacembelidae were found to not be well supported and were rejected. Also, the genera Caecomastacembelus and Aethiomastacembelus were placed in synonymy with Mastacembelus. [3] These fish originate from Africa, and southern and eastern Asia. [3]
Mastacembelus aculeatus (Bloch, 1786) Rhyncobdella aculeata (Bloch, 1786) The lesser spiny eel , Macrognathus aculeatus , is a Southeast Asian tropical freshwater fish belonging to the family Mastacembelidae . [ 2 ]
The fire eel (Mastacembelus erythrotaenia) is a relatively large species of spiny eel. This omnivorous freshwater fish is native to Southeast Asia but is also found in the aquarium trade. [1] [3] Although it has declined locally (especially in parts of Cambodia and Thailand) due to overfishing, it remains common overall. [1]
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 , [ 3 ] it is only one of fifteen spiny eel species in the Tanganyikan basin (fourteen endemic).
Boulenger's spiny eel (Mastacembelus alboguttatus) [3] is a species of ray-finned fish endemic to India, Myanmar and Thailand, known from Sittaung River, Salween River and Manipur River and possibly Irrawaddy River. Inhabiting large rivers and tributaries, it is consumed by locals but is uncommon in the aquarium trade.
Mastacembelus plagiostomus is a species of fish in the family Mastacembelidae. It is found in shallow waters with rock substrates and is endemic to Lake Tanganyika. It grows to 30 centimetres (12 in) standard length. [2]