Hyphessobrycon borealis

Hyphessobrycon borealis is a species of tetra in the family Characidae.

Distribution
Hyphessobrycon borealis is commonly found in French Guiana, where it has been discovered in many coastal river systems.

Description
Hyphessobrycon borealis has a tail very similar to the Buenos Aires tetra, with its black patch jutting out into yellow and then turning clear. A long black line runs down its body with an iridescent black below it and an iridescent gray above it.