Fig. 2

Specimens of Accacoelium contortum in the ocean sunfish Mola mola (L.) from the Western Mediterranean. a Adult relaxed specimen in lateral view (b indicates the area magnified in Fig. 2b); scale bar = 1 mm. b Detail of the anterior extremity showing the long peduncle of the ventral sucker; scale bar = 1 mm. c Detail of the ventro-lateral view of the forebody (SEM) (d, e and g indicate the papillae magnified in (d), (e) and (g), respectively); scale bar = 600 μm. d Tegumental papillae of the forebody with a single swelling at the tip; scale bar = 50 μm. e Group of tegumentary papillae of the forebody with several apical swellings (f indicates the papilla magnified in (f); scale bar = 100 μm. f Detail of a tegumental papilla with a cluster of digitiform swellings at the tip; scale bar = 20 μm. g Detail of the crown of circum-oral papillae; scale bar = 70 μm. h Immature specimen in lateral view; scale bar = 500 μm