- Detected in faecal specimens of infected human
- Eggs embryonated when passed
- Miracidium hatching from egg is infective to snail intermediate host
Diagnostic Features
- Size: 90 x 70 (range: 68-100 x 45-80)
- Shape: Oval to round
- Colour: Yellow or yellow brown
- Small lateral spine that looks like a knob/hook, located in a depression in shell
- Contains a miracidium when passed