Light micrograph of a larval stage (nauplius larva) of a freshwater copepod Cyclops sp. Cyclops is a freshwater arthropod and a member of the group Crustacea, belonging to the subgroup Cyclopoida and the subclass Copepoda. The larval stages of Cyclops species have 3 pairs of legs and the typical red Cyclops eye in the anterior centre of the animal. Microscopic contrast method : Differential interference contrast. Magnification 180x at a print width of 10 cm.