FIGURES 1–4. 1. Biospeedotrema jolliveti n in New digeneans (Opecoelidae) from hydrothermal vent fishes in the south eastern Pacific Ocean, including one new genus and five new species

FIGURES 1–4. 1. Biospeedotrema jolliveti n. sp. ventral view of holotype. 2. Biospeedotrema parajolliveti n. sp., ventral view of holotype. 3. Biospeedotrema biospeedoi n. sp. a. Ventral view of holotype. b, c. Illustration of variation in body-shape. 4. Caudotestis ventichthysi. n. sp. Ventral view of holotype, cirrus-sac obscured by eggs. Abbreviations: C, caecum; CS, cirrussac; E, egg; Ov, ovary; T, testis; V, vitelline follicle. Scale-bars: 1, 3a, b, c, 4, 200 µm; 2, 100 µm.