Fig. 2

Neopolystoma guianensis n. sp. Holotype. a, Ventral view. b, testis. c genital spines. d haptoral sucker showing a ring of skeletal elements. e marginal hooklets. Abbreviations: eg, egg; gb, genital bulb; hp, haptor; ic, intestinal caecum; mo, mouth; ov, ovary; ph, pharynx; su, sucker; te, testis; va, vagina; vd, vas deferens; vi, vitellaria. Scale-bars: a, 1,000 μm; b, 100 μm; c, 10 μm; d, 100 μm; e, 10 μm