Three Species of Dactylogyrus (Monogenea: Dactylogyridae) Parasitic on Japanese Seabass Lateolabrax japonicus (Perciformes: Lateolabracidae) in Japan, with New Country Records for Dactylogyrus gotoi and Dactylogyrus kikuchii

Abstract

Three species of Dactylogyrus Diesing, 1850 (D. inversus Goto and Kikuchi, 1917, D. gotoi Gussev, 1967, and D. kikuchii Gussev, 1967 were collected from the gills of Japanese seabass Lateolabrax japonicus (Cuvier, 1828) in two brackish-water lakes (Lake Nakaumi and Lake Shinji) in Shimane Prefecture, Japan. These collections represent the first records of D. gotoi and D. kikuchii from Japan. Although these two dactylogyrids were originally described from a fish reported as "Lateolabrax japonicus" in China, the latter appears to be a different species, L. maculatus (McClelland, 1844), which has been recently recorded as an introduced species in Japan.