Sundadanio axelrodi
Sundadanio axelrodi is a danionin in the family Cyprinidae, with origin from Borneo, Bangka, and Sumatra. Originally described as a rasbora, "Rasbora axelrodi", this tiny species was later deemed to be more closely related to the danios but not enough to be moved into the genus "Danio". "Sundadanio axelrodi" reaches a maximum size of 1.7 cm. "Sundadanio" was considered monotypic until the genus was reassessed by Conway, Kottelat and Tan in 2011. Etymology. Named in honor of pet-book publisher Herbert R. Axelrod (b. 1927), who discovered this species in the tanks of a Singapore aquarium fish exporter