Description

Sewellia lineolata, commonly known as the Reticulated Hillstream Loach or Tiger Hillstream Loach, is a small, highly specialized freshwater fish endemic to the fast-flowing river basins of central Vietnam. Belonging to the family Gastromyzontidae, they are famous for their unique, aerodynamic morphology. Their broad pectoral and pelvic fins are modified into specialized suction pads, allowing them to anchor tightly to smooth boulders and crawl upstream against raging torrents.

网纹腹吸鳅（学名：*Sewellia lineolata*，常被称为“网纹溪鳅”或“虎纹溪鳅”）是一种小型、高度特化的淡水鱼类，为越南中部急流流域的特有物种。它们隶属于腹吸鳅科（Gastromyzontidae），以其独特且符合流体动力学特征的体型而闻名。其宽大的胸鳍和腹鳍演化成了特化的吸盘，使它们能够紧紧吸附在光滑的岩石上，并逆着湍急的水流向上爬行。