Fig. 5From: Diphyllobothrium sprakeri n. sp. (Cestoda: Diphyllobothriidae): a hidden broad tapeworm from sea lions off North and South AmericaPhotomicrographs of histological sections of holotype of ‘Diphyllobothrium’ sprakeri n. sp. from Zalophus californianus, California, USA. a Gravid proglottid, cross section. b Gravid proglottids, sagittal section. c Detail of cirrus sac and genital atrium in gravid proglottid, cross section. d Detail of longitudinal musculature. Abbreviations: cs, cirrus sac; esv, external seminal vesicle; lm, longitudinal musculature; te, testes; uss, uterine sac-like structure; vf, vitelline follicleBack to article page