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 13. Awaous jayakari (Boulenger, 1888) , Native Fig. 34 Etymology: jayakari : named after Atmaram Sadashiv Grandin/Grovindin Jayakar (1844–1911), known also as Muscati, Indian naturalist, military physician, and colonial administrator, sent to Muscat by the Indian Medical Service. Common name: Longnose Goby, Arabian Freshwater Goby, Jayakar’s Goby. Taxonomy: Gobius jayakari was described by Boulenger [G. A.] 1888:663, Pl. 54 (fig. 2) [Proceedings of the Zoological Society of London 1887 (pt 4)] from a fresh water body near Muscat , Oman . Syntypes : BMNH 1887.11.11.234-237 (4) . Synonym: Gobius percivali Boulenger, 1901 , Proc. Zool. Soc. Lond., 1901, v. 1 (pt 1): 152, fig. 9 ( Stream near Lahej [ Al-houta ], Yemen ). FIGURE 34. Awaous jayakari , Oman: Mugseil, a new locality record. Short description: Awaous jayakari belongs to the A. commersoni group (western Indian Ocean speciesgroup), which is characterized by the absence of scales on the opercle and preopercle). It is clearly distinguished from its closely related species from Africa, A. aeneofuscus , by the following characters: breast and pectoral base naked, pectoral base with 1–3 scales in adults (vs. pectoral base usually fully scaled), and the first dorsal fin with small brown spots and no distinct black spot in young or adults (vs. with marbling of small black spots and blotches, especially pronounced posteriorly, but no distinct white-edged black spot). Distribution: Oman (Wadi Shab and Darsit; Fig. 35 ), UAE , Yemen , Iran , Pakistan . Remarks: It was already recorded from Wadi Shab and Darsit ( Oman Sea side). Here we record several other populations of this fish in the Wadis adjacent to the coastal area of the Arabian Sea, Dhofar region ( Fig. 35 ). Examined material: ZM-CBSU: AJ1-24 , 45 , Oman : Dar Sait , 23°36ʹ45ʹʹN , 58°32ʹ41ʹʹE , S.M. Al-Jufaili .