深条鳅

<em>Afronemacheilus abyssinicus</em> is a small freshwater fish classified within the family Nemacheilidae, the stone loaches, a family distributed broadly across Europe and Asia with a notable representation in Africa. This species typically attains a maximum length of approximately 5.1 cm. Nemacheilidae encompasses numerous species adapted to a wide range of freshwater conditions, though most inhabit clear, cool, well-oxygenated streams and rivers with rocky or gravelly substrates where they forage for small invertebrates along the bottom. <em>Afronemacheilus abyssinicus</em> is native to Ethiopia, where it occurs in freshwater systems in the highland regions. The ecology and distributional details of this species are not comprehensively documented in the ichthyological literature, and further field study may be required to fully characterize its habitat preferences, range boundaries, and population status. Like other nemacheilids, it is likely a benthic species that remains close to the substrate and feeds on invertebrates, algae, and organic matter. Stone loaches generally prefer cool, well-aerated water with stable chemistry, and <em>Afronemacheilus abyssinicus</em> is expected to share these broad preferences given its highland origin. The species is not commonly encountered in the international aquarium trade. Details of broader habitat and range for this species remain limited in the ichthyological literature.