Clonorchis spp.

Clonorchis sinensis. Egg in feces (unstained, high power). The egg of this liver fluke is small (27-35 µm by 12-19 µm). It has a prominent seated operculum and a small knob at the abopercular end; the latter may be absent or inconspicuous. The egg contains a miracidium when passed in the feces.