FIG. 1 in Redescription and phylogenetic assessment of Helicometra antarcticae Holloway & Bier, 1968 (Trematoda, Opecoelidae), with evidence of non-monophyletic status of the genus Helicometra Odhner, 1902

FIG. 1. — Helicometra antarcticae Holloway & Bier, 1968 from intestine of the Antarctic toothfish, Dissostichus mawsoni Norman, 1937, Ross Sea: A, whole mount, ventral view; B, terminal genitalia, lateral view; C, ovarian complex, ventral view. Abbreviations: С, cirrus everted through genital atrium; ej, ejaculatory duct; ga, genital atrium; isv, internal seminal vesicle; lc, Laurer's canal; mg, Mehlis' gland cells; mt, metraterm; oc, ovicapt; oo, oÖtype; ov, ovary; pc, prostatic cells; pp, pars prostatica; sr, seminal receptacle; vr, common vitelline reservoir. Scale bars: A, 1 mm; B, 0.2 mm; C, 0.08 mm.