Freshwater fishes of Syria: a revised and updated annotated checklist- 2023 Author Saad, Adib 0000-0001-6393-2836 Al Andalus University, Kadmus, Tartus, Syria / Syrian Society for Aquatic Environment Protection, Lattakia, Syria. https: // orcid. org / 0000 - 0001 - 6393 - 2836 Author Çiçek, Erdoğan Department of Biology, Faculty of Art and Sciences, Nevþehir Hacý BektaþVeli University, Nevþehir, T ¸ rkiye. Author Esmaeili, Hamid Reza 0000-0002-9736-397X Ichthyology and Molecular Systematics Research Laboratory, Zoology Section, Department of Biology, School of Science, Shiraz University, Shiraz, Iran. https: // orcid. org / 0000 - 0002 - 9736 - 397 X Author Fricke, Ronald 0000-0003-1476-6990 Staatliches Museum f ¸ r Naturkunde in Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany. https: // orcid. org / 0000 - 0003 - 1476 - 6990 Author Sungur, Sevil 0000-0003-4018-6375 Health Services Vocational School, Nevþehir Hacý BektaþVeli University, Nevþehir, T ¸ rkiye. https: // orcid. org / 0000 - 0003 - 4018 - 6375 Author Eagderi, Soheil 0000-0001-6393-2836 Al Andalus University, Kadmus, Tartus, Syria / Syrian Society for Aquatic Environment Protection, Lattakia, Syria. https: // orcid. org / 0000 - 0001 - 6393 - 2836 & Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran. https: // orcid. org / 0000 - 0002 - 1134 - 0356 * Corresponding author: erdogancicek 50 @ gmail. com; https: // orcid. org / 0000 - 0002 - 5334 - 5737 & Al Andalus University, Kadmus, Tartus, Syria / Syrian Society for Aquatic Environment Protection, Lattakia, Syria. https: // orcid. org / 0000 - 0001 - 6393 - 2836 erdogancicek50@gmail.com text Zootaxa 2023 2023-09-22 5350 1 1 62 http://dx.doi.org/10.11646/zootaxa.5350.1.1 journal article 270787 10.11646/zootaxa.5350.1.1 503ff6a9-9260-469d-af97-456e103cbfae 1175-5334 23B4C9BF-A1A4-4D27-8C30-E4A23DAD01AB Silurus triostegus Heckel, 1843 [N]—Mesopotamian catfish; Sallour Taxonomy. Original description: Silurus triostegus Heckel, 1843a: 1090 [100] [Tigris River, near Mosul, Iraq ; syntypes : (4) NMW, SMF 2623 (1, dry)].—Syrian synonyms: None.—Revisions: Kobayakawa (1989: 174) .—Illustration: Heckel (1843b : pl. 13, fig. 1); Esmaeili (2021: 309 , fig. 17.12). Status in Syria . First record from Syria by Beckman (1962: 176) ; confirmed by Krupp & Schneider (1991b: 73) ; Ali (2003) ; Saad et al. (2009) .—Syrian material: MSL. Distribution and habitat. Distribution in Syria : Tigris and Euphrates River basins.—Distribution in River Basin: 1-Dajleh & Khabour, 2-Euphrates & Aleppo .—General distribution: Asia Minor and Middle East: Iraq , Iran , and Turkey .—Distribution in Ecoregion: 441-Lower Tigris & Euphrates, 442-Upper Tigris & Euphrates.— Habitat: This species inhabits large rivers, marshes, lakes, and reservoirs. Freshwater. Economic importance. Commercially important. Conservation. Conservation status in Syria : Unknown.—IUCN: LC ( IUCN 2023 ).—Threats: There are many threats in the area affection this species, but none seem to be strong enough to let the species decline so fast, that it qualifies for a threat category.—Low sensitivity to human activities.—Keystone species.—Decline status: Decreasing.—Low priority for conservation action.