- Size: 10-20 mm x 3-7 mm
- Usually wider than long
- Testes and vitelline follicles: Numerous and scattered laterally
- Bilobed ovary – located in middle in posterior third of segment
- Short, coiled unbranched uterus – seen as a brownish patch in centre of gravid segments
- Genital pore in centre of segment
- Separate uterine pore
