Hymenolepis nana – Proglottides

Morphological Features of Mature Proglottid

  • Wider than long
  • Genital pores are unilateral; always situated on the left anterior corner of each segment
  • Each mature segment contains three testes and a bilobed ovary
  • Uterus is an irregular sac containing eggs
Magnification X10








Morphological Features of Gravid Proglottid

  • Wider than long: 0.2-0.3 mm long x 0.8-0.9 mm wide
  • Uterus not visible; proglottid is filled with eggs
Magnification X10