“…Our review of the literature showed that the freshwater gobies of Bosnia and Herzegovina includes six genera with seven species. In contrast with earlier publications (Vuković 1963, 1977, Bogut et al 2006, Sofradžija 2009, the present study lists four new species (B. gymnotrachelus, K. radovici, O. croaticus and N. melanostomus), reflecting developments in ichthyological research, the description of species new to science (Kovačić 2005) and the expansion of invasive species (Delić et al 2014, Nedić et al 2014, Čolić et al 2018. The absence of certain species is also verified, and recent scientific evidence forces us to exclude four species from the current checklist: K. panizzae, which is likely a misidentification (for details, see Kovačić &Pallaoro 2003 andKovačić 2009); P. microps considering Kottelat & Freyhof (2007) and Šanda & Kovačić (2009); P. marmoratus given the new findings from molecular studies that show it only inhabits marine and brackish water (Stepien & Tumeo 2006, Neilson & Stepien 2009a, and Z. ophiocephalus for which there was never confirmed evidence of its occurrence.…”