Hampala is a genus of predatory barbs (family Cyprinidae) from Southeast Asian rivers, with the atlas's 10 species drawn from Malaysia, Thailand, Indonesia, Laos, Brunei, Cambodia, Myanmar, and the Philippines. Unlike the small omnivorous barbs most aquarists picture, Hampala are active, elongate hunters built for chasing down smaller fish - a torpedo-shaped body, a large terminal mouth, and a forked tail for bursts of speed. Most species carry a distinctive dark saddle or blotch across the mid-flank, a field mark that gives the genus its common thread even across very different sizes; the atlas range runs from a modest 2 in up to a striking 27.5 in, putting the largest Hampala among the bigger true barbs anywhere.
Hampala macrolepidota, the hampala barb, is the genus's best-known member - an important food and sport fish across much of its range, and occasionally kept by hobbyists running large ponds or oversized aquaria who want an active predatory cyprinid rather than a community fish. Its size and hunting habit rule it out of anything but the biggest setups. Most atlas species are rated Least Concern or Not Evaluated, but one Endangered listing points to localized pressure - damming, sedimentation, and habitat alteration in specific river systems - on an otherwise widespread and resilient genus.