Trigonostigma

Trigonostigma is a genus of small cyprinid fish found in Southeast Asia. These social, colorful freshwater fish are often kept in aquariums.

Species
There are currently five recognized species in this genus:
 * Trigonostigma espei (Meinken, 1967) (Lambchop rasbora)
 * Trigonostigma hengeli (Meinken, 1956) (Glowlight rasbora)
 * Trigonostigma heteromorpha (Duncker, 1904) (Harlequin rasbora)
 * Trigonostigma somphongsi (Meinken, 1958) (Somphongs's rasbora)
 * Trigonostigma truncata (Tan, 2020)