Fig. 11.297. 5-12. Pseudoharpella arcolamylica. 5, 6. Convoluted basal cells attached to the host's hindgut cuticle. 7-9. Released trichospores each bearing three short, tapered appendages at their base. 10-12. Various shapes of zygospores. Scale bars = 20 mm. From Ferrington et al., 2003.