Trigonostigma is a genus of small freshwater ray-finned fishes belonging to the family Danionidae. The fishes in this genus are found in Southeast Asia. These social, colorful freshwater fish are often kept in aquariums.

Species

There are currently five recognized species in this genus:

SpeciesCommon nameImage
Trigonostigma espei (Meinken, 1967)Espei rasbora
Trigonostigma hengeli (Meinken, 1956)Glowlight rasbora
Trigonostigma heteromorpha (Duncker, 1904)Harlequin rasbora
Trigonostigma somphongsi (Meinken, 1958)Somphong's rasbora
Trigonostigma truncata (Tan, 2020)