Dr. Holló Ferenc szerk.: Parasitologia Hungarica 3. (Budapest, 1970)
.Table II. Rubenstrema opisthovitellinum (Soltys, 1954)(original) extending beyond- it orally even in t^uch contracted specimens; a well-developed cirrus sac present (0.40-0.48 x 0.16-0.18 mm). Entire cirrus sac situated transversely in front of ventral sucker, touching its oral surface. Genital pore opening anteriorly to oral surface of ventral sucker. Uterus situated in area bordered by ventral sucker and posterior testis,its whorls extending between the two testes,but projecting beyond posterior testis only insignificantly even in much contracted animals. Anteriorad, it leads on left side of ventral sucker towards genital pore. Eggs 0.06 x 0.02 mm.