三角姑

<em>Tachysurus adiposalis</em> is a freshwater catfish belonging to the family Bagridae, a family of typically medium-sized catfishes widely distributed across Africa and Asia. This species reaches a maximum recorded length of approximately 22.3 cm. Bagrid catfishes are characterized by the presence of an adipose fin — the specific epithet "adiposalis" likely references this feature — along with strong, serrated spines in the dorsal and pectoral fins. Members of the genus <em>Tachysurus</em> are distributed across East Asian river systems, typically inhabiting rivers, streams, and reservoirs with a range of substrate types including sand, gravel, and rock. They are generally nocturnal or crepuscular predators, feeding on benthic invertebrates, small fishes, and organic matter. Details of specific habitat preferences and the full geographic range of <em>Tachysurus adiposalis</em> remain limited in the ichthyological literature.