Plate 1:
Fig. 1: Adult. Fig. 2: Ovary and associated structures. Fig. 3: Miracidium, showing attitudes, a: in capsule, b: swimming, c: exploring, d: detail in capsule.
Fig. 4: Plan of main adult excretory ducts. Detail of accessory tubules shown on left in testes region to indicate type of branching.
Abbreviations: a, actabulum; ac, anterior collecting tubule; eb, excretory bladder; f, flame cell; g, gut; ga, genital atrium; L, Laurer's canal; m, Mehlis’ gland; mc, capsules with miracidia; o, ovary; od, oviduct; oe, oesophagus; os, oral sucker; ov, oviduct; pc, posterior collecting tubule; t, testis; u, uterus; ut, coil of uterus ascending to atrium; vas, vas deferens; vd, vitelline duct; vg, vitelline gland; vr, vitelline reservoir; vs, vesicula seminalis.