Fig. 1. Neoheterocotyle quadrispinata n in A New Monocotylid Species, Neoheterocotyle quadrispinata n. sp. (Monogenea), Infecting Gills of Rhinobatos hynnicephalus in Japan

Fig. 1. Neoheterocotyle quadrispinata n. sp. Holotype (NSMT-Pl 6381) for A, paratypes (NSMT-Pl 6383) for B–F. A, whole mount (ventral view); B, hamulus; C, hooklet; D, sclerotized haptoral accessory sclerite associated with posterior loculus; E, sclerotized haptoral accessory sclerite associated with posterolateral loculus; F, male copulatory organs (from two specimens, left: ventral view, right: dorsal view). Scale bars: A, 200 µm; B, D–F; 20 µm, C, 10 µm. Abbreviations for morphological characters: ap, accessory piece; amg, anteromedian gland; cgp, common genital pole; dh, dorsal haptoral accessory structure; ej, ejaculatory bulb; ey, eyespots; g, germarium; h, hamulus; ho, hooklet; in, intestine; m, mouth; mag, male accessory gland; mco, male copulatory organ; o, oötype; od, oviduct; p, penis; ph, pharynx; phg, pharyngeal glands; r, sinuous ridge; s, anterior ventral sac; sr, seminal receptacle; sv, seminal vesicle; t, testis; tv, transverse vitelline duct; v, vagina; vd, vas deferens; vi, vitellaria; vo, vaginal opening. Abbreviations for measurements of hard parts: apl, accessory piece length; asl, haptoral accessory sclerite length; asw, haptoral accessory sclerite base width; hl, hamulus length; hol, hooklet length; pl, penis length.