PLANKTONIC CYCLOPOID COPEPODS FROM SMALL PONDS IN KYUSHU, JAPAN - II - SUBFAMILY CYCLOPINAE

Five cyclopoid species of the subfamily Cyclopinae, Cyclops vicinus, M esocyclops dissimilis, M. ruttneri, Thermocyclops crassus and T. taiho kuensis are described from small ponds in Kyushu, with attention being paid to micro-characters, such as spinules on the appendages. Two for ms of C. vicinus were distinguished based on the segmentation of the a ntennule and the patterns of spinules on the antenna. The diagnostic c haracters of M. dissimilis in the original description are unusual for our specimens but the differences ate considered as variations of the species.