Branchiopoda (Crustacea: Anostraca and Diplostraca) diversity in Tajik Pamir and plain West and South Tajikistan Author Dadykin, Ivan A. A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia. Author Karimov, Gafur N. E. N. Pavlovsky Institute of Zoology and Parasitology of the National Academy of Sciences of Tajikistan 33 Rudaki Ave., Dushanbe 734025, Republic of Tajikistan. Author Sinev, Artem Y. Department of Invertebrate Zoology, Biological Faculty, M. V. Lomonosov Moscow State University, Leninskie Gory 1 - 12, Moscow 119991, Russia. Author Volkova, Polina A. I. D. Papanin Institute for Biology of Inland Waters RAS, Borok, Yaroslavl Region 152742, Russia. Author Kotov, Alexey A. A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia. text Zootaxa 2024 2024-08-22 5497 1 1 32 http://dx.doi.org/10.11646/zootaxa.5497.1.1 journal article 302153 10.11646/zootaxa.5497.1.1 bbd7a0ba-81be-4f19-8da7-911e438b565b 1175-5326 13617864 87B27D58-7812-44D7-92AF-B72A4A6E040B Ceriodaphnia dubia Richard, 1894 s. lat. The species is a new record for Tajikistan . Ceriodaphnia dubia was observed in several localities in Tajik Pamir at altitudes of 3700–4200 m (loc. 26, 30, 31, 51–53). A cosmopolitan species group tolerating a variety of conditions, previously reported from altitudes less than 680 m ( Korovchinsky & Kotov 2021 , Garibian et al. 2023 ), therefore our records are the highest for this species. Some records of Ceriodaphnia quadrangula (O.F. Müller, 1785) from Pamir might belong to C. dubia s. lat.