Species from the caves of Abkhazia (Western Caucasus): A–C stygoxenes D–F stygophiles G–L stygobionts: A Gammarus caucasicus (Adzhimchigrinskaya Cave) B Lithax incanus (Tarkili Cave) C Baetis cf. gemellus (Kveda Shakurani Cave) D Odeles sp. (Shua Shakurani Cave) E Trocheta sp.4 (Adzaba Cave) F Tschernomorica lindholmi (Gupskaya Cave) G Niphargus cf. latimanus (Kveda Likhni Cave) H Euglesa ljovuschkini (Tsebeldis satavis Cave) I Xiphocaridinella osterloffi (Kveda Shakurani Cave) J Zenkevitchia yakovi (Kveda Shakurani Cave) K Niphargus cf. magnus (Gupskaya Cave) L Caucasopsis sp. (Thina Cave). Scale bars: 1 mm (A–E; G, I–K); 0.5 mm (F, H, L).

 
 
  Part of: Borisov RR, Chertoprud ES, Palatov DM, Novichkova AA, Vorobjeva LV, Chertoprud EM (2025) At the edge of darkness and light: macrozoobenthic assemblages of streams in the entrance zone of caves in the Western Caucasus. Subterranean Biology 53: 73-101. https://doi.org/10.3897/subtbiol.53.152803