Özbek, M. 2026. Gammarus elifedae sp. nov., description of a new amphipod (Amphipoda: Gammaridae) species from Sarpunalınca Cave (Kastamonu, Türkiye), with an updated key for the Turkish freshwater Gammarus species. Zootaxa. 5757, 1 (Feb. 2026), 39–52. DOI:https://doi.org/10.11646/zootaxa.5757.1.3.