- Source: Sundadanio margarition
Sundadanio margarition is a danionin in the family Cyprinidae. It is endemic to Sarawak, Malaysian Borneo, and known from the Rajang and Sarawak River drainages. It lives in coastal peat swamp forests.
Sundadanio margarition reaches a maximum size of 1.9 cm (0.75 in) standard length.
