Cyprinidae Remarks: The family Cyprinidae accounts for the majority (nine species, 39.13%), of the freshwater ichthyodiversity of Oman. All of these cyprinids invaded from Asia after the early Miocene. The cyprinids include the true barbels (Barbinae) and labeonines (Labeoninae). The true barbels in Oman is represented by only one species (Cyprinion muscatense) which is distinguished by having a serrated posterior margin of the last unbranched dorsal-fin ray and a sharped edge and horny sheath lower lip. The labeonines in Oman are represented by one genus (Garra) and eight species. Members of the genus Garra are distinguished by having a modified complex mouth structure (including a disk-like structure, which is a specialized mental lobe behind the lower jaw), and a smooth posterior margin of the last unbranched dorsal-fin ray.

Published as part of Esmaeili, Hamid Reza, Jufaili, Saud Al, Masoumi, Amir Hassan & Zarei, Fatah, 2022, Ichthyodiversity in southeastern Arabian Peninsula: Annotated checklist taxonomy, short description and distribution of Inland fishes of Oman, pp. 451-503 in Zootaxa 5134 (4) on page 462, DOI: 10.11646/zootaxa.5134.4.1, http://zenodo.org/record/6541567