Ichthyodiversity in southeastern Arabian Peninsula: Annotated checklist taxonomy, short description and distribution of Inland fishes of Oman Author Esmaeili, Hamid Reza 0000-0002-9736-397X hresmaeili @ shirazu. ac. ir; https: // orcid. org / 0000 - 0002 - 9736 - 397 X hresmaeili@shirazu.ac.ir Author Jufaili, Saud Al 0000-0002-0930-5754 Department of Marine Science and Fisheries, Sultan Qaboos University, P. O Box 34 Al Khod 123 Muscat, Oman. sjufaily @ squ. edu. om; https: // orcid. org / 0000 - 0002 - 0930 - 5754 sjufaily@squ.edu.om Author Masoumi, Amir Hassan 0000-0003-3509-2964 amirhassanmasoomi @ gmail. com; https: // orcid. org / 0000 - 0003 - 3509 - 2964 amirhassanmasoomi@gmail.com Author Zarei, Fatah 0000-0001-5552-4301 fataahzarei @ gmail. com; https: // orcid. org / 0000 - 0001 - 5552 - 4301 fataahzarei@gmail.com text Zootaxa 2022 2022-05-12 5134 4 451 503 journal article 55549 10.11646/zootaxa.5134.4.1 aa696fc1-e783-4df4-b960-24dfeca95570 1175-5326 6541567 47796EB6-B7FE-4442-AED3-E664DCC9A9B4 11. Eleotris acanthopomus Bleeker, 1853 , Native Fig. 30 FIGURE 30. Eleotris acanthopomus , new record for Oman. FIGURE 31. Distribution map of Eleotris acanthopomus , a new fish record for Oman. Pink: Southwestern Arabian Coast, green: Oman Mountains, and yellow: Arabian Interior. Etymology: Eleotris : the name of a Nile fish, eleotris; acanthopomus : refers to the downward-pointing spine at the posterior margin of the preoperculum. Common name: Spine-cheek Gudgeon. Taxonomy: Eleotris acanthopomus was described by Bleeker [P.] 1853:275 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 4 (no. 2)] from Western Sumatra , Indonesia . Holotype (unique): RMNH 25934 . Short description: D VI –I, 8; A I, 8; Pt 16; P2 I, 5; LR 51; TR 16; Pred. S 41; P-V 3/1 II II 1/8; V 10+15=25. The species of this genus have a downward-pointing spine at the posterior margin of the preoperculum, which is covered with skin. The species are distinguished by the differences in the sensory papillae. Eleotris acanthopomus has 5 transverse rows of papillae below the eyes. The 2nd and 4th transverse rows extend downwards beyond the longitudinal row below them, but the 3rd and 5th do not. Two longitudinal rows on the operculum do not touch at the posterior ends. Inhabits mainly brackish water. Takes up life at the bottom before it reaches 2 cm SL. General distribution: Indo-West Pacific: Comoros , Seychelles ; Indonesia east to Micronesia and French Polynesia , north to Ibaraki Prefecture ( Japan ), south to northern Australia and New Caledonia . Habitat: freshwater, brackish, marine. Distribution in Oman : Here, we report it for the first time in one locality (Wadi Hasik) located in the inland water body of Oman adjacent to the shore of the Arabian Sea ( Fig. 31 ). Examined material: ZM-CBSU: S103-1, 2, Oman : Dhofar Governorate , Salalah , Wadi Hasik , at Hasik Village , 17°22’01.2”N , 55°16’58.8”E , H. R . Esmaeili, S.M . Al-Jufaili, A.H . Masoumi, 04 Jan. 2022 .