Sundadanio axelrodi

{{Short description|Species of fish}}

{{speciesbox

| image = Sundadanio cf. axelrodi.jpg

| status = VU

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Lumbantobing, D. |year=2019 |title=Sundadanio axelrodi |page=e.T91075306A91075410 |doi=10.2305/IUCN.UK.2019-2.RLTS.T91075306A91075410.en |access-date=27 January 2025}}

| taxon = Sundadanio axelrodi

| display_parents = 3

| authority = (Brittan, 1976){{Cof genus|genus=Sundadanio|access-date=27 January 2025}}

| synonyms = *Rasbora axelrodi Brittan, 1976

| synonyms_ref =

}}

Sundadanio axelrodi is a species of freshwater ray-finned fish belonging to the family Sundadanionidae, the tiny danios. This fish is known only from Bintan Island in the Riau Islands east of 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.Conway, K.W., Kottelat, M. & Tan, H.H. (2011): Review of the Southeast Asian miniature cyprinid genus Sundadanio (Ostariophysi: Cyprinidae) with descriptions of seven new species from Indonesia and Malaysia. Ichthyological Exploration of Freshwaters, 22 (3): 251–288.