Acrossocheilus microstoma

<em>Acrossocheilus microstoma</em> is a freshwater cyprinid fish of the family Cyprinidae. The specific epithet "microstoma" denotes a notably small mouth, a morphological feature often associated with specialized feeding on periphyton and algal mats scraped from hard substrates. The genus <em>Acrossocheilus</em> is distributed across river systems of East and Southeast Asia, where species are typically associated with clear, fast-flowing hill and mountain streams with rocky bottoms and high dissolved oxygen levels. These fish are adapted to rheophilic conditions and are often found in riffles and runs where current velocity is elevated. No maximum length or weight data are currently available for <em>Acrossocheilus microstoma</em>. Details of habitat structure preferences and the full geographic range of this species remain limited in the ichthyological literature.