Barbodes is a genus of barbs in the carp family Cyprinidae, distributed across island and mainland Southeast Asia. The atlas covers 43 species spanning a wide size range, from 1 in dwarf forms up to a substantial 14 in, with the classic barb body plan of a laterally compressed, often silvery or spotted body and, in many species, a set of mouth barbels. Atlas records span the Philippines, Indonesia, Malaysia, Laos, Vietnam, Cambodia, Thailand, and China, and the genus includes both widespread river barbs, such as the spotted barb (Barbodes binotatus) and clown barb (B. everetti), and a striking number of highly localized, lake- or cave-restricted endemics.
Barbodes carries one of the starkest conservation records in the atlas: of the 43 species covered, 15 are already assessed Extinct. Most of that toll traces to a single, well-documented event — the collapse of the endemic cyprinid species flock of Lake Lanao in the Philippines during the mid-to-late 20th century, driven by the introduction of predatory fish and heavy overfishing, which wiped out numerous Barbodes species, such as those in the lanaoensis, manalak, and palata group, found nowhere else on Earth. A further 6 species are Critically Endangered and 4 Endangered, making the genus a sobering case study in how quickly an isolated lake fauna can be lost. Aquarium interest is modest by comparison — the spotted barb and clown barb turn up in the trade, but Barbodes is best known today among ichthyologists and conservation biologists as a cautionary tale rather than a hobby staple.