刺鰭鏟齒魚

<em>Scaphiodonichthys acanthopterus</em> is a freshwater fish belonging to the family Cyprinidae, the carps and minnows, the largest family of freshwater fishes in the world. This species can attain a maximum length of approximately 31 cm, making it a moderately large representative of its family. Cyprinidae encompasses an extraordinarily diverse assemblage of fishes found across freshwater systems on every major continent except South America and Australia, ranging from tiny danionins to large carp species of commercial importance. <em>Scaphiodonichthys acanthopterus</em> is native to the river systems of mainland Southeast Asia, where it inhabits flowing freshwater environments including rivers and larger streams. Its moderately large body size and the structure implied by its genus name — <em>Scaphiodonichthys</em> referring to shovel-toothed fishes — suggest adaptations for processing specific food items, likely including plant material, algae, or hard-bodied invertebrates. Many large cyprinids of this region occupy important ecological roles as mid-level consumers, processing vegetation and invertebrates and serving as prey for larger predatory fishes and birds. Some large cyprinids in Southeast Asia face pressure from habitat degradation, overfishing, and damming of river systems that disrupt migration routes. <em>Scaphiodonichthys acanthopterus</em> is not commonly encountered in the international ornamental fish trade given its size. Details of broader habitat and range for this species remain limited in the ichthyological literature.