The three stripe corydoras (Corydoras trilineatus), false julii corydoras or three line catfish is a tropical freshwater fish. It originates in inland waters in the central Amazon River basin in Brazil and Colombia, the Peruvian Amazon, and coastal rivers in Suriname.
It is often mistaken as the Corydoras julii since the Julii also has a horizontal stripe running along the sides of its body. The distinct difference between C. trilineatus and C. julii is in their stripes on the side. In C. trilineatus, the stripes are much more pronounced and solid than in C. julii.