Akysis fuliginatus

<em>Akysis fuliginatus</em> is a diminutive freshwater catfish in the family Akysidae, a group of small benthic torrent catfishes distributed across flowing stream systems of South and Southeast Asia. Adults of this species typically attain a maximum recorded length of approximately 2.15 cm, placing it among the smallest known members of the genus <em>Akysis</em>. Like its congeners, <em>Akysis fuliginatus</em> is believed to inhabit well-oxygenated, fast-flowing streams and hill rivers where its flattened body form and adhesive capability allow it to maintain position on rocky and gravelly substrate against strong currents. The genus <em>Akysis</em> is distinguished by roughened, tuberculate skin, barbel-bearing jaws, and a broadly depressed head suited to life in benthic zones. <em>Akysis fuliginatus</em> is presumed to feed on small invertebrates, algal matter, and organic detritus characteristic of swift-water environments. Details of habitat and range for this species remain limited in the ichthyological literature. Many akysid species occupy highly localised stream drainages and may be vulnerable to catchment-level disturbances such as deforestation, sedimentation, and water abstraction. <em>Akysis fuliginatus</em> has not been assessed for conservation status, and comprehensive survey data are needed to characterise its distribution and population health.