Line drawings of Metagonimus romanicus (Ciurea, 1915) (A, B, D–F) and M. ciureanus (Witenberg, 1929) (C). A – adult from experimentally infected golden hamster (Mesocricetus auratus; 8 days post infection – DPI), Hungary, general view, ventral; B – syntype from domestic dog (Canis familiaris), Somova, Tulcea County, Romania, July 1914 (USNM 1327535), general view, dorsal; C – syntype from domestic cat (Felis catus), Jaffa, Israel, 1928 (NHMUK 1929.7.24.55–74a); general view, ventral; D – adult from golden hamster (8 DPI), anterior part of body with short, but distinct prepharynx; E – adult from domestic cat (17 DPI), terminal genitalia, dorsal; note the short hermaphroditic duct and the pars prostatica; F – adult from golden hamster (8 DPI), terminal genitalia, ventral; note the ventrogenital sac and the ventral gonotyl. Abbreviations: ca – caecum, dg – dorsal gonotyl, ed – ejaculatory duct, eg – egg, ev – excretory vesicle, gp – genital pore, hd – hermaphroditic duct, oe – oesophagus, os – oral sucker, ov – ovary, ph – pharynx, pph – prepharynx, pp – pars prostatica, sr – seminal receptacle, sv – seminal vesicle, te – testes, tg – tegument with spines, ut – uterus, vf – vitelline follicles, vg – ventral gonotyl, vgs – ventrogenital sac, vs – ventral sucker.