CRUSTACEANA, vol.80, no.6, pp.641-653, 2007 (SCI-Expanded)
Gammarus dorsosetosus Mateus & Mateus, 1990, a freshwater amphipod endemic to Turkey, is herein reported for the second time from Turkey. Until now, there exists only one record of this species, i.e., the original description of Mateus & Mateus (1990). In order to contribute to the knowledge on distribution, ecology, and morphology of the species, detailed morphological descriptions and illustrations of the extremities of both sexes, distribution localities, and environmental conditions of the localities are given, in addition to a comparison with similar species.