Fig. 3From: Diphyllobothrium sprakeri n. sp. (Cestoda: Diphyllobothriidae): a hidden broad tapeworm from sea lions off North and South AmericaLine drawings of ‘Diphyllobothrium’ sprakeri n. sp. from Zalophus californianus, California, USA. a Selected anterior, middle and posterior proglottids of holotype, ventral view. b Scoleces, dorsoventral view. Scolex of holotype marked with an asterisk. c Genitalia of mature proglottids of holotype, ventral view, vitelline follicles omitted on left side and testes on the right side of proglottid. d Schematic drawing of gravid proglottids of holotype showing the position of the sac-like structure of the uterus. Abbreviations: cs, cirrus sac; esv, external seminal vesicle; ga, genital atrium; mg, Mehlis' gland; ov, ovary; te, testes; up, uterine pore; uss, uterine sac-like structure; ut, uterus; vf, vitelline follicle; vg, vaginaBack to article page