Architecture of Paradiplozoon homoion: A diplozoid monogenean exhibiting highly-developed equipment for ectoparasitism
Fig 1
Surface topology of forebody tegumentary structures in Paradiplozoon homoion adults.
A) Overall view of an adult. The white circles indicate the area of the mouths and the white rectangles the area of the haptors. SEM. B) Ventral view of the forebody, with a subterminal mouth and two apically located, round projections. SEM. C) Micrograph of an opened mouth revealing two buccal suckers and uniciliated sensory structures. SEM. D) The mouth area covered by numerous uniciliated sensory structures and pits. SEM. E) Detail of the mouth border (the area marked by the white rectangle in D). Note the tegument with numerous pits and sensory structures. SEM. F) Detail of the buccal cavity surface enlarged by numerous foliate and tubular digitations. SEM. asterisks–round projections, black arrowheads–pits, black arrows–tubular digitations, bs–buccal sucker, fb 1– forebody 1, fb 2 –forebody 2, hb 1 –hindbody 1, hb 2 –hindbody 2, mo–mouth, white arrowheads–uniciliated sensory structures, white arrows–foliate digitations.