caucasicus, Gasterosteus platygaster var. Kessler [K. F.] 1877:3 [The Aralo-Caspian Expedition; ref. 2597] Transcaucasia. Syntypes: ZIN 2401 (12+). •Synonym of Pungitius platygaster (Kessler 1859) -- (Berg 1949:969 [ref. 20662], Monod 1973:285 [ref. 7193], Kottelat 1997:166 [ref. 22952], Keivany & Nelson 2000:116 [ref. 24720], Paepke in Bănărescu & Paepke 2002:267 [ref. 25856], Parin et al. 2014:205 [ref. 33547], Jouladeh-Roudbar et al. 2020:286 [ref. 37983], Çiçek et al. 2024:376 [ref. 40789]). Current status: Synonym of Pungitius platygaster (Kessler 1859). Gasterosteidae. Habitat: freshwater, brackish, marine.