Garibian P.G.1, Kirova N.A.2, Kotov A.A.1 2022. Pleuroxus pamirensis (Werestschagin, 1923) (Crustacea: Cladocera), first record for the fauna of Russian Federation // Arthropoda Selecta. Vol.31. No.2: 173–178 [in English].
2 Tuvinian Institute for Exploration of Natural Resources of SB RAS, Internacyonalnaya Str., 117A, Kyzyl, Tuva Republic, 667007, Russia. E-mail: email@example.com
doi: 10.15298/arthsel. 31.2.05
ABSTRACT. This communication provides the first record of Pleuroxus pamirensis (Werestschagin, 1923) (Crustacea: Cladocera) from the Russian Federation. It belongs to a unique pair of chydorid species having lateral horns on valves. It differs from closest P. annandalei (Daday, 1908) in: (1) postanal teeth predominantly solitary; (2) spine on proximal exopod segment of antenna II longer than half of second segment; (3) seta i on limb I long (as long as seta g of h). Our study has demonstrated that the mountain regions could be regarded as sources for such new findings of the cladocerans even in well-studied countries.
KEY WORDS: Crustacea, Cladocera, first record, fauna, Russia.