Haemonchus contortus
Fig. 1 : Anterior end, showing a pair of cervical papillae
Fig. 2 : Posterior end of male, showing spicules and arrangement of rays in bursa
Fig. 3 : Posterior region of female, showing opening of anus
Fig. 4 : Vulvar region of linguiform  female, showing tongue-shaped flap
Fig. 5 : Knob-shaped flap on vulva in knobbed phenotype
Fig. 6 : Egg