Redescription of the stygobitic shrimp Troglocaris (Xiphocaridinella) jusbaschjani Birštein, 1948 (Decapoda: Caridea: Atyidae) from Agura River, Sochi, Russia, with remarks on other representatives of the genus from Caucasus Author Marin, Ivan Author Sokolova, Agniya text Zootaxa 2014 3754 3 277 298 journal article 46663 10.11646/zootaxa.3754.3.3 cefee2dc-e89e-47a7-becb-d070f10421c1 1175-5326 228220 F6749B0E-1F58-4B02-BFB1-5D1564B201A4 Troglocaris ( Xiphocaridinella ) fagei ( Birštein, 1939 ) ( Figs. 13 , 14 ) Troglocaris schmidti fagei Birštein, 1939 : 964 , figs. 3 [ type locality: New Athos Cave, Abkhazia]. Material examined. 10 non-ovigerous females, 2 males , Abkhazia, 43°5'44"N 40°48'53"E , New Athos (Novo- Afonskaya) Cave, Anatolia Lake in the first lake of the cave, coll. E. Chertoprud & D. Palatov October 2011 . Measurements. The largest female has tbl.— 31 mm , pcl.— 15 mm ; the largest male has tbl.— 22 mm , pcl.— 13 mm . Remarks. The examined adult specimens show variation in rostral length and form of supraorbital teeth (see Fig. 14 ). Rostrum mostly smooth, with completely reduced dorsal teeth, but in some specimens 1 or 2 tiny dorsal teeth may present; the rostral length greatly vary from long and getting distally thin rostrum overreaching the distal margin of basal antennular segment ( Fig. 14 a, b ) to short triangular rostrum reaching the midlength of basal antennular segment ( Fig. 14 e–h ); supraocular teeth also showing variation from well developed ( Fig. 14 d) to poorly developed from one side ( Fig. 14 f ) and complete absence of both teeth ( Fig. 14 b ). Such variations easily cover morphological difference between Troglocaris ( Xiphocaridinella ) fagei ( Birštein, 1939 ) (present paper, Figs. 13 , 14 ) and Troglocaris ( Xiphocaridinella ) ablaskiri ( Birštein, 1939 ) ( Birštein, 1948: Fig. 2 ) known from Abraskila Cave, or Achkshe-Tyz-Gua Cave, situated less than 100 km east from New Athon Cave suggesting that they are possibly conspecific. Rostral form and its armature were used by Birštein (1939: 965) as the main morphological features for separation of these species. Anyway, during the present study we have no fresh material from the type locality of Troglocaris ( Xiphocaridinella ) ablaskiri ( Birštein, 1939 ) for morphological and DNA analysis to confirm or refute this hypothesis. Distribution. The species is known exclusively from cave lakes inside New Athos (Novo-Afonskaya) or Psyrtskha Cave, Abkhazia (see Fig. 16 ).