- Source: Sundadanio echinus
Sundadanio echinus is a danionin in the family Cyprinidae. It is endemic to Borneo and found in West Kalimantan (Indonesia) and western Sarawak (Malaysia). It lives in peat swamps and blackwater streams.
Sundadanio echinus reaches a maximum size of 2.1 cm (0.83 in) standard length.