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45 results for “Acanthobothrium”
FIGURES 1–3 in Three new species of Acanthobothrium Blanchard, 1848 (Cestoda: Onchoproteocephalidea) in Stingrays (Dasyatidae) from the Pacific coast in Mexico
FIGURES 1–3. Light microscope photographs of entire worms of the three new species (Holotypes). 1. Acanthobothrium ppdeleoni n. sp. (CNHE–11253); 2. Acanthobothrium hypanus n. sp. (CNHE–11255); 3. Acanthobothrium sinaloaensis n. sp. (CNHE–11257). Scale bars: 1, 2 and 3 = 500 μm.
FIGURES 25–30 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 25–30. Acanthobothrium westi sp. nov. from Raja texana. 25. Scolex, note rounded bothridia joined by velum and length of cephalic peduncle. 26. Hooks, note form of lateral hook (left). 27. Hooks, note form of lateral hook (right). 28. Bothridium, note bothridial form and position of septa. 29. Terminal (mature) segment. 30. Detail of ovary. Note overlap of left lobe over right lobe posteriorly. Scale bars: Figs. 25, 29= 100 um. Figs. 26, 27= 35 um. Figs. 28, 30= 50 um.
FIGURES 31–36 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 31–36. New Acanthobothrium species from Gulf of Mexico. 31. A. ulmeri sp. nov., holotype. 32. A. westi sp. nov., holotype. 33. A. westi sp. nov., scolex from specimen 2.24 mm long. 34. A. ulmeri sp. nov., scolex from specimen 1.2 mm long. 35. A. schalli sp. nov. detail of hooks showing elongated tubercles. 36. A. schalli sp. nov., holotype, entire worm with 18 segments. Scale bars: Figs. 31, 32= 250 µm, Figs. 33, 34, 35= 50 µm, Fig. 36.= 500 µm.
FIGURES 20–24 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 20–24. Acanthobothrium ulmeri sp. nov. from the roundel skate, Raja texana. 20. Scolex. Note acuminate bothridia and short cephalic peduncle 21. Hooks showing two variations in form of lateral hook. 22. Terminal segment. 23. Terminal genitalia. Note vaginal constriction. 24. Entire worm. Scale bars: Fig. 20= 100 µm. Fig. 21= 25 µm. Figs. 22, 23= 50 µm. Fig. 24= 250 µm.
FIGURES 14–19 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 14–19. Acanthobothrium schalli sp. nov. from Mustelus c. canis. 14. Scolex. 15. Hooks. Note tubercles (arrows). 16. Detail of lappets (arrows) on accessory suckers. 17. Mature segment. Note striations on tegument. 18. Detail of ovary. Note union of lobes posterior to shell gland. 19. Detail of ovary in oblique view. Note bilobed form and pedicellate lobules. Scale bars: Figs. 14, 17, 19 = 100 µm. Fig. 15.= 20 µm. Fig. 16, 18= 50 µm.
FIGURES 1–5 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 1–5. Acanthobothrium cairae sp. nov. from Dasyatis centroura. 1. Scolex (holotype). 2. Hooks. 3. Mature segment. Muscle bundles omitted for clarity. 4. Detail of terminal genitalia. 5. Gravid segment. Scale bars: Figs. 1, 3, 5 = 250 µm. Figs. 2, 4= 100 µm.
FIGURES 9–13 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 9–13. Acanthobothrium lentiginosum sp. nov. from the Atlantic guitarfish. 9. Scolex. 10. Hooks. 11. Mature segment. Note posterior extent of testes. 12. Detail of bilobed ovary, inverted A-shaped. 13. Entire worm. Scale bars: Figs. 9, 11, 13= 100 µm. Figs. 10, 12= 50 µm.
FIGURES 6–8 in Five new species of Acanthobothrium van Beneden, 1849 (Cestoda: Tetraphyllidea) in elasmobranchs from the northwest Atlantic and Gulf of Mexico with first records from smooth-hound sharks and guitarfish
FIGURES 6–8. Transverse sections of Acanthobothrium cairae sp. nov. 6. Immature segment, anterior to cirrus sac. Note 8 large muscle bundles. 7. Mature segment, anterior to ovary. Note testes, vitellaria, uterus and 8 large muscle bundles. 8. Mature segment. Section at level of ovarian isthmus. Note bilobed ovary and 8 large muscle bundles. Abbreviations: dc, dorsal osmoregulatory canal; m, muscle bundle; o, ovary; t, testis; u, uterus; v, vagina; vc, ventral osmoregulatory canal; vt, vitelline follicles, Scale bars: Figs. 6–8= 200 µm.
FIGURE 5 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 5. Denticle band at the tail base of Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488- 001, 672 mm DW, preserved).
FIGURE 4 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 4. Scapular denticles of Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488-001, 672 mm DW, fresh).
FIGURE 3 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 3. Oronasal region of Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488-001, 672 mm DW, preserved).
FIGURE 7 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 7. Posterior tail of Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488-001, 672 mm DW, fresh): A, dorsal view; B, lateral view; C, ventral view.
FIGURE 6 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 6. Tail below caudal sting of Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488-001, 672 mm DW, fresh): A, lateral view; B, ventral view. Note the low ventral skin fold below the caudal sting.
FIGURE 2 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 2. Dorsal surfaces of fresh non-types of Urogymnus acanthobothrium sp. nov.: A, embryo ~265 mm DW, east of Wessel Islands, Northern Territory, Australia (photo: K. Jensen); B, juvenile male 390 mm DW, West Alligator River, Northern Territory, Australia (photo: P. Kyne); C, female 1140 mm DW, Gulf of Papua, Papua New Guinea (photo: S. Tova); D, adult male 1100 mm DW, Gulf of Papua, Papua New Guinea (photo: National Fisheries Authority); E, adult female 1610 mm DW, east of Wessel Islands, Northern Territory, Australia (Photo: K. Jensen).
FIGURE 1 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea
FIGURE 1. Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488-001, 672 mm DW): A, dorsal surface, fresh; B, ventral surface, preserved.
FIGURES 19–21 in Two new and one redescribed species of Acanthobothrium (Cestoda: Onchoproteocephalidea: Onchobothriidae) from Dasyatis akajei (Myliobatiformes: Dasyatidae) in the China Sea
FIGURES 19–21. Scanning electron micrographs of Acanthobothrium guanghaiense n. sp. 19. Scolex. 20. Distal bothridial surface. 21. Enlarged view of bothridial surface at lateral margin of bothridium. Scale–bars: 19, 50 µm; 20–21, 1 µm.
FIGURES 8–14 in Two new and one redescribed species of Acanthobothrium (Cestoda: Onchoproteocephalidea: Onchobothriidae) from Dasyatis akajei (Myliobatiformes: Dasyatidae) in the China Sea
FIGURES 8–14. Scanning electron micrographs of Acanthobothrium ningdense n. sp. 8. Scolex. 9. Apical view of scolex. 10. Enlarged view of apical pad and apical sucker. 11. Distal bothridial surface. 12. Enlarged view of proximal bothridial surface. 13. Enlarged view of bothridial surface at lateral margin of bothridium. 14. Surface of cephalic peduncle. Scale–bars: 8–9, 100 µm; 10, 20 µm; 11–14, 1 µm.
FIGURES 28–34 in Two new and one redescribed species of Acanthobothrium (Cestoda: Onchoproteocephalidea: Onchobothriidae) from Dasyatis akajei (Myliobatiformes: Dasyatidae) in the China Sea
FIGURES 28–34. Scanning electron micrographs of Acanthobothrium macrocephalum Wang & Yang, 2001. 28. Scolex. 29. Enlarged apical view of muscular pad and hooks in Fig. 28. 30. Apical view of muscular pad. 31. Enlarged view of hooks after removing the apical sucker. 32. Distal bothridial surface. 33. Enlarged view of bothridial surface at lateral margin of bothridium. 34. Enlarged view of proximal bothridial surface. Scale–bars: 28, 1 mm; 29, 100 µm; 30–31, 50 µm; 32, 1 µm; 33– 34, 2 µm.
FIGURES 22–27 in Two new and one redescribed species of Acanthobothrium (Cestoda: Onchoproteocephalidea: Onchobothriidae) from Dasyatis akajei (Myliobatiformes: Dasyatidae) in the China Sea
FIGURES 22–27. Acanthobothrium macrocephalum Wang & Yang, 2001. 22. Scolex. 23. Muscular pad with its sucker and two prominent lobes. 24. Hooks. 25. Terminal genitalia. 26. Mature proglottid. 27. Gravid proglottid. Scale–bars: 22, 600 µm; 23–25, 50 µm; 26–27, 200 µm.
FIGURES 16–18. Acanthobothrium guanghaiense n in Two new and one redescribed species of Acanthobothrium (Cestoda: Onchoproteocephalidea: Onchobothriidae) from Dasyatis akajei (Myliobatiformes: Dasyatidae) in the China Sea
FIGURES 16–18. Acanthobothrium guanghaiense n. sp. 16. Scolex. 17. Hooks. 18. Mature proglottid. Scale–bars: 16–18, 50 µm.
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