Figs 12-15 in An emendation of the generic diagnosis of the monotypic Glanitaenia (Cestoda: Proteocephalidae), with notes on the geographical distribution of G. osculata, a parasite of invasive wels catfish

Figs 12-15. Glanitaenia osculata from Silurus glanis, (12, 13) Cross sections of the poral part of a pregravid proglottid at the level of the vagina (MHNG-PLAT-68397). Note the presence of a proximally situated vaginal sphincter and more distally situated muscles surrounding the vaginal canal. (14) Egg spontaneously released from a gravid tapeworm collected in the Czech Republic. (15) Detail of the cirrus-sac and the distal (terminal) part of the vaginal canal (MHNG-PLAT-84710). Abbreviations: ci: cirrus; cs: cirrus-sac; em: bi-layered embryophore; ga: genital atrium; lm: internal longitudinal musculature; mf: muscle fibres; mi: microtriches; oe: outer envelope; on: oncosphere; st: subtegumental muscle fibres; su: subtegumental cells; te: testes; tg: tegument; va: vas deferens; vc: vaginal canal; vi: vitelline follicles; vo: ventral osmoregulatory canal; vs: vaginal sphincter.