Hillstream Loach and Similar Species
Gastromyzon sp.
Got a photo? Identify fish instantly with the Fishby app.
Open the appSeveral fish can be confused with Hillstream Loach. Here are the key differences.
Species often confused with {name}
Sewellia Lineolata
Sewellia lineolata
Key differences: Often confused with Gastromyzon. Sewellia species typically have a more pronounced 'butterfly' shape with a wider, more rounded body disc and often more intricate, contrasting patterns (e.g., distinct stripes or spots). Gastromyzon species tend to be more elongated and less 'round' in their overall body disc shape, though this can vary by species.
Beaufortia kweichowensis
Beaufortia kweichowensis
Key differences: Also known as Chinese Hillstream Loach. Beaufortia generally has a more oval to rounded body shape when viewed dorsally, and their pectoral and pelvic fins are typically more distinct from the body, not forming as continuous a 'disc' as in many Gastromyzon species. Their head shape can also differ, with Beaufortia often having a slightly more pointed snout.
Homaloptera sp.
Homaloptera sp.
Key differences: While also hillstream dwellers, Homaloptera species are generally more elongated and cylindrical, lacking the extreme dorsoventral flattening and large adhesive disc of Gastromyzon. Their fins are not as broadly expanded and horizontally oriented.
Explore Hillstream Loach
Identify fish anywhere
Free on iOS, Android, and Web. Photo identification, full species details, and more.