64841 Barbus oligolepis Battalgil, 1941 Cyprinidae Minnows or carps Barbinae Cypriniformes Teleostei Marmara barbel Asia: rivers draining to the southern shore of the Marmara Sea, Turkey: Nilüfer, Koca (= Kocasu; entering Lake Ulubat), Kocachay (entering Lake Manyas, a tributary of Koca or Susurluk River), Hanchay (a tributary of Gönen) and Narlıca Stream in İznik county (flowing to Lake Iznik). AMNH 14759 1939 Barbus oligolepis ZMH 914 1959 Barbus oligolepis