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Figure 6 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)

Figure 6. Diagrammatic view of a marlin, showing scanning electron micrographs of Makaira nigricans at four different locations ventrally, where a Capsala sp. was observed. (a) Beneath the head; (b) between the pectoral fins; (c) region lateral to the first anal fin; (d) region lateral to the second anal fin.

Figure 5 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)

Figure 5. Diagrammatic view of a marlin, showing scanning electron micrographs of the dorsal skin of Makaira nigricans at two different locations, where a Capsala sp. was observed. (a) The bill and on top of the head; (b) region lateral to the dorsal and caudal fins.

Figure 3 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)

Figure 3. The attachment to the host surface by a Capsala sp. (a) Longitudinal section of an individual attached to the surface of Makaira nigricans, showing the location of the haptor and anterior attachment organs; (b, c) scanning electron micrographs showing the outlines left by (b) the anterior attachment organs, and (c) the haptor showing the impression of the septa and marginal valve.

Figure 4 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)

Figure 4. Diagrammatic representation of the balanced forces acting on the body of Capsala sp. while it is attached to the outer surface of Makaira nigricans (arrows indicate the direction in which the force is acting).

Figure 2 in The anatomy and attachment mechanism of the haptor of a Capsala sp. (Platyhelminthes: Monogenea: Capsalidae) on the blue marlin, Makaira nigricans (Istiophoridae)

Figure 2. The haptoral anatomy of a Capsala sp. (a) Differential interference contrast photograph of the posterior haptor; (b) schematic representation of the anatomy of the haptor—in the same orientation as indicated in (a).

FIGURE 3 in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 3. Variation in the morphology of the dorsomarginal body sclerites of Capsaloides perugiai and those species (C. istiophori, C. marielenae and C. tetrapteri) newly synonymised with C. perugiai (present study). Note that the number of cusps associated with the crownshaped sclerite decrease towards the posterior body region. A. C. istiophori, drawn from USNPC 63598. B. C. marielenae, drawn from CNHE 000133. C. C. perugiai, redrawn from Setti (1898). D. C. tetrapteri, drawn from USNPC 63600. Scale bar: 10 m.

FIGURE 6. Capsaloides magnaspinosus. A in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 6. Capsaloides magnaspinosus. A. Light photomicrograph of the whole body, ventral view of mounted specimen. B. Scanning electron micrograph (SEM) of the whole body, ventral view. C. SEM of the anterior part of the body, ventral view, showing the 2 anterior attachment organs, mouth, vaginal pore (arrowhead) and papillate sinuous edge of body. D. Nomarski photomicrograph of the sinuous edge of the body showing small tegumental papillae (arrowhead). E. Nomarski photomicrograph of scalloped muscular marginal valve showing papillae associated with the dorsal surface of each scallop. Scale bars: A, B = 2mm; C = 500 m; D, E = 100.

FIGURE 2 in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 2. Nomarksi photomicrographs of the dorsomarginal body sclerites of Capsaloides species. For consistent comparison, the sclerites were photographed at the level of the anterior border of the ovary. A. C. cornutus, from USNPC 35136. B. C. cristatus, from USNPC 63597. C. C. hoffmannae, from CNHE 002718; note that the cusps of the sclerites cannot be seen well in this unflattened specimen and the body margin appears annulated. D. C. magnaspinosus, from USNPC 35648. E. C. nairagi, from USNPC 63599; note that the sclerites are distributed in a slightly zigzagged pattern. F. C. perugiai, from USNPC 63600 (specimen originally identified as C. tetrapteri). Scale bars: 20 m.

FIGURE 5 in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 5. Capsaloides magnaspinosus. Whole adult parasite, ventral view. NB: For clarity, the intestinal caeca are not drawn. Abbreviations: aao, anterior attachment organ; as, haptoral accessory sclerite; bps, bifid posterior septum; cgp, common genital pore; dbs, dorsomarginal body sclerite; h, hooklet; p, pharynx; t, testis; v, vitellarium. Scale bar: 2mm.

FIGURE 4 in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 4. Haptoral accessory sclerites of Capsaloides perugiai and those species newly synonymised with C. perugiai. A. C. istiophori, redrawn from Yamaguti (1968). B. C. istiophori, drawn from USNPC 63598. C. C. marielenae, drawn from CNHE 000133. D. C. perugiai, redrawn from Setti (1898). D. C. tetrapteri, drawn from USNPC 63600. Note that the only specimen of C. istiophori deposited is large and the morphology of the accessory sclerites are slightly different (B) to that drawn by Yamaguti (1968) (see A) who based his description on 28 specimens. Scale bar: 50 m.

FIGURE 7 in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 7. Capsaloides magnaspinosus. Magnified illustration of the male and female reproductive system, ventral view. Abbreviations: agr, accessory gland reservoir; magd, male accessory gland duct; mco, male copulatory organ; mcoc, male copulatory organ canal; mcos, male copulatory organ sac; o, ovary; oot, oötype; ov, oviduct; ovd, ovovitelline duct; tvd, transverse vitelline duct; v, vagina; vd, vas deferens; vp, vaginal pore; vr, vitelline reservoir; u, uterus. Scale bar: 500 m.

FIGURE 1 in Revision of Capsaloides (Monogenea: Capsalidae) with a redescription of C. magnaspinosus Price, 1939 from the nasal tissue of Tetrapterus audax (Istiophoridae) collected off Nelson Bay, New South Wales, Australia

FIGURE 1. Haptoral accessory sclerites of Capsaloides species. A. C. cornutus, drawn from USNPC 35136. B. C. cristatus, drawn from USNPC 63597. C. C. hoffmannae, drawn from CNHE 002718. D. C. magnaspinosus, drawn from USNPC 35648. E. C. nairagi, drawn from USNPC 63599. F. C. perugiai, redrawn from Setti (1898). G. C. sinuatus, redrawn from Goto (1894). Scale bar: 100 m.

FIGURES 1–6. Caballerocotyla llewelyni n in Caballerocotyla llewelyni n. sp. and Caballerocotyla neothunni (Yamaguti, 1968) (Monogenea; Capsalidae) parasites of Brazilian tunas (Scombridae)

FIGURES 1–6. Caballerocotyla llewelyni n. sp. 1. Holotype ventral view. 2. Anchors. 3. Ovary and terminal genitalia of paratype. 4. Light micrograph of total worm. 5. Light micrograph of egg with four filaments. 6. Confocal scanning light micrograph, haptor with papillae and marginal membrane. Scalesbars: 1, 1 mm; 2, 0.05 mm; 3, 0.5 mm.

FIGURES 7–11 in Caballerocotyla llewelyni n. sp. and Caballerocotyla neothunni (Yamaguti, 1968) (Monogenea; Capsalidae) parasites of Brazilian tunas (Scombridae)

FIGURES 7–11. Caballerocotyla neothunni (Yamaguti, 1968) Oliva, 1986. 7. Light micrograph. 8. Phase contrast microscopy of tegumental dorso lateral spine, 800 X. 9. Confocal scanning light micrograph of mouth aperture. 10. Confocal scanning light micrograph of genital pore (arrow), vaginal pore (arrowhead). 11. Confocal scanning light micrograph of haptor without papillae.

FIGURE 11 in Revision of Benedeniella Johnston, 1929 (Monogenea: Capsalidae), its assignment to Entobdellinae Bychowsky, 1957 and comments on subfamilial composition

FIGURE 11. Benedeniella posterocolpa (Hargis, 1955) Yamaguti, 1963. Region of germarium, transverse vitelline duct, vitelline reservoir and ootype in ventral view based on AHC 29911 (specimen labeled no. 3) with some additions by hand. Note that full extent of the transverse vitelline duct (dotted lines) is not shown and cirrus sac is omitted (see Figures 8 and 10 for details) to depict the junction of oviduct (ov) and common vitelline duct (cv) to form the ovovitelline duct (ovo) which is dorsal to the transverse vitelline duct. Abbreviations as for Figures 1 and 6. Scale bar: 1 mm.

FIGURE 10 in Revision of Benedeniella Johnston, 1929 (Monogenea: Capsalidae), its assignment to Entobdellinae Bychowsky, 1957 and comments on subfamilial composition

FIGURE 10. Benedeniella posterocolpa (Hargis, 1955) Yamaguti, 1963. Anterolateral region of body (left side) of adult parasite. Composite drawing in ventral view based on AHC 29911 (specimen labeled no. 3) with some additions by hand. Note that positions of some ducts (e.g. transverse vitelline duct, vas deferens and uterus) are displaced slightly for clarity. Also, common genital pore, excretory papilla and vaginal pore open dorsally and are shown here as seen by transparency. Details of junction of oviduct, common vitelline duct and ovo-vitelline duct (all these structures are dorsal to the transverse vitelline duct) are shown in Figure 11. Abbreviation: ve, vas efferens. Other abbreviations as for Figures 1 and 6. Scale bar: 1 mm.

FIGURE 9 in Revision of Benedeniella Johnston, 1929 (Monogenea: Capsalidae), its assignment to Entobdellinae Bychowsky, 1957 and comments on subfamilial composition

FIGURE 9. Benedeniella posterocolpa (Hargis, 1955) Yamaguti, 1963. Haptoral sclerites of adult parasite. A. Accessory sclerite. Note proximal transverse ridges (tv). B. Anterior hamulus. C. Posterior hamulus. D. Hooklet. E. Proximal ends of anterior hamulus (ah) and accessory sclerite (as) showing main tendon path (stippled) plus branch (solid) to haptor tissue (see also Figure 3C). Scale bars: A–B, 100 µm; C, 50 µm; D, 10 µm; E, 200 µm.

FIGURE 8 in Revision of Benedeniella Johnston, 1929 (Monogenea: Capsalidae), its assignment to Entobdellinae Bychowsky, 1957 and comments on subfamilial composition

FIGURE 8. Benedeniella posterocolpa (Hargis, 1955) Yamaguti, 1963. Whole adult parasite, composite drawing, in ventral view based on AHC 29911 (specimen labeled no. 4) with some additions by hand. For clarity, intestinal diverticula (entirely coextensive with the vitellarium) other than immediately posterior to pharynx and full extent of convolutions of vas deferens are simplified (but are shown in full in Figure 10). Abbreviations as for Figures 1 and 6. Scale bar: 1 mm.

FIGURE 7 in Revision of Benedeniella Johnston, 1929 (Monogenea: Capsalidae), its assignment to Entobdellinae Bychowsky, 1957 and comments on subfamilial composition

FIGURE 7. Diagrammatic comparison of curvature of cirrus sac in example juvenile (A) and adult (B) Benedeniella macrocolpa (Lühe, 1906) Yamaguti, 1963. A. Juvenile specimen (AHC 29905 (specimen labeled no. 9); total length (including haptor) = 3.37 mm; anterior hamulus lengths = 366 and 376 µm. B. Adult specimen (AHC 29905 (specimen labeled no. 8)); total length (including haptor) = 8.1 mm; anterior hamulus lengths = 718 and 743 µm. Abbreviations as for Figure 1. Scale bars: A, 300 µm; B, 1 mm.

FIGURE 6 in Revision of Benedeniella Johnston, 1929 (Monogenea: Capsalidae), its assignment to Entobdellinae Bychowsky, 1957 and comments on subfamilial composition

FIGURE 6. Benedeniella macrocolpa (Lühe, 1906) Yamaguti, 1963. Anterolateral region of body (left side) of adult parasite. Composite drawing in ventral view based on AHC 29905 (specimen labeled no. 1) with some additions by hand. Note that positions of some ducts (e.g. transverse vitelline duct, vas deferens and uterus) are displaced slightly for clarity. Also, common genital papilla, common genital pore, excretory papilla and vaginal pore are located dorsally and are shown here as seen by transparency. Abbreviations: cgp, common genital papilla; cv, common vitelline duct; dv, distal part of vagina; ep, excretory papilla; ey, eye; fc, fertilisation chamber; ju, junction of uterus and terminal male genital duct; m, male accessory gland reservoir; mg, terminal male genital duct; og, ootype glands; ov, oviduct; ovo, ovovitelline duct; pv, proximal part of vagina; tvd, transverse vitelline duct; u, uterus; vd, vas deferens; vdc, vas deferens within cirrus sac; vr, vitelline reservoir. Other abbreviations as for Figure 1. Scale bar: 1 mm.