Checklist Of The Free-Living Copepoda (Crustacea) From Mato Grosso Do Sul State

This checklist gathered the free-living Copepod information from Mato Grosso do Sul State. It was recorded 20 species for Calanoida, 26 for Cyclopoida and four for Harpacticoida. That diversity was similar to Mato Grosso State located in north frontier and quite different to Sao Paulo State in the east frontier. Part of this difference could be explain by the greater area sampled in Paraguai River Basin when compares to the sampled area in the Parana River Basin. The main ways for the knowledge increase of Copepoda in the state of Mato Grosso do Sul were discussed.