The term tire track eel can get rather confusing, There are actually several spiny eels that are called Tire Track Eels, and so are often mis-identified. This is a common name that is used for 3, sometimes 4 different species. Besides being used forM. armatusandM. favus, it is also a common name used for the Half-banded Spiny Eel Macrognathus circumcinctus, and occasionally for the Black Spotted Eel Mastacembelus dayi.

Fire Eel Mastacembelus erythrotaenia around 22 in Aquarium

Tire Track Eel Mastacembelus armatus around 20 in Aquarium

Half-banded Spiny Eel Macrognathus circumcinctu around 6 in Aquarium