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26 results for “Tetraphyllidea”
FIG. 1. — Orygmatobothrium schmittii n in A new Orygmatobothrium Diesing, 1863 (Eucestoda, Tetraphyllidea) parasite of Mustelus schmitti Springer, 1939 (Carcharhiniformes, Triakidae) from the southwestern Atlantic Ocean
FIG. 1. — Orygmatobothrium schmittii n. sp.; A, scolex; B, gravid proglottid (ventral view); C, cross section throught proglottid at level of ovary; D, detail of terminal genitalia with everted cirrus (lateral view); E, egg. Abbreviations: d, dorsal; v, ventral; o, ovary; od, oviduct; dod, dorsal osmorregulatory duct; vod, ventral osmoregulatory duct; mg, mehlis glands; va, vagin; vf, vitelline follicles; u, uterus. Scale bars: A-C, 0.2 mm; B, 1 mm; D, 0.05 mm; E, 0.01 mm.
FIGURE 2 in Two new species of Caulobothrium (Cestoda: "Tetraphyllidea") from the duckbill eagle ray, Aetomylaeus bovinus (Myliobatiformes: Myliobatidae), off Senegal with new insights on morphological features of the genus
FIGURE 2. Scanning electron micrographs of Caulobothrium multispelaeum n. sp. from Aetomylaeus bovinus off Senegal. A. Scolex; small letters indicate locations of details in E and F. B. Anterior region of bothridium showing apical sucker; inset light micrograph of same region. C. Medial longitudinal groove on immature proglottids; small letter indicates location of detail in G. D. Mature proglottid with medial longitudinal groove expanded laterally to form tandem series of elliptical apertures. E. Distal surface of bothridium. F. Proximal surface of bothridium. G. Surface of strobila.
FIGURE 4 in Two new species of Caulobothrium (Cestoda: "Tetraphyllidea") from the duckbill eagle ray, Aetomylaeus bovinus (Myliobatiformes: Myliobatidae), off Senegal with new insights on morphological features of the genus
FIGURE 4. Scanning electron micrographs of Caulobothrium katzi n. sp. from Aetomylaeus bovinus off Senegal. A. Scolex; small letters indicate locations of details in E–G. B. Anterior region of bothridium showing inconspicuous apical sucker (arrow). C. Proximal surface of bothridial rim at level of loculi. D. Distal surface of bothridial rim. E. Distal surface of bothridium away from rim. F. Proximal surface of bothridium. G. Surface of cephalic peduncle.
FIGURE 1 in Two new species of Caulobothrium (Cestoda: "Tetraphyllidea") from the duckbill eagle ray, Aetomylaeus bovinus (Myliobatiformes: Myliobatidae), off Senegal with new insights on morphological features of the genus
FIGURE 1. Line drawings of Caulobothrium multispelaeum n. sp. from Aetomylaeus bovinus off Senegal. A. Scolex (paratype; USNM No. 1638628). B. Whole worm (paratype; USNM No. 1638628). C. Mature proglottid (holotype; MNHN No. HEL1365). D. Detail of terminal genitalia and ootype region, elliptical depressions/apertures removed (holotype; MNHN No. HEL1365).
FIGURE 6 in Two new species of Caulobothrium (Cestoda: "Tetraphyllidea") from the duckbill eagle ray, Aetomylaeus bovinus (Myliobatiformes: Myliobatidae), off Senegal with new insights on morphological features of the genus
FIGURE 6. Apical suckers in Caulobothrium tetrascaphium and Caulobothrium pedunculatum. A. Scanning electron micrograph of apical sucker of C. tetrascaphium. B. Light micrograph of frontal section through apical sucker of C. tetrascaphium (LRP No. 10256). C. Light micrograph of apical sucker of Caulobothrium pedunculatum (LRP No. 3914).
FIGURE 3 in Two new species of Caulobothrium (Cestoda: "Tetraphyllidea") from the duckbill eagle ray, Aetomylaeus bovinus (Myliobatiformes: Myliobatidae), off Senegal with new insights on morphological features of the genus
FIGURE 3. Line drawings of Caulobothrium katzi n. sp. from Aetomylaeus bovinus off Senegal. A. Scolex (holotype; MNHN No. HEL1369). B. Whole worm (holotype; MNHN No. HEL1369). C. Detail of terminal genitalia (holotype; MNHN No. HEL1369). D. Mature proglottid (paratype; USNM No. 1638631).
FIGURE 5 in Two new species of Caulobothrium (Cestoda: "Tetraphyllidea") from the duckbill eagle ray, Aetomylaeus bovinus (Myliobatiformes: Myliobatidae), off Senegal with new insights on morphological features of the genus
FIGURE 5. Light micrographs of sections of Caulobothrium multispelaeum n. sp. and Caulobothrium katzi n. sp. stained with Delafield's hematoxylin and counter-stained with eosin. A. Cross section of mature proglottid of C. multispelaeum n. sp. anterior to cirrus sac. B. Cross section of mature proglottid of C. multispelaeum n. sp. at level of ovarian isthmus. C. Cross section of mature proglottid of C. katzi n. sp. anterior to cirrus sac. D. Cross section of mature proglottid of C. katzi n. sp. slightly posterior to ovarian isthmus. Abbreviations: O, ovary; T, testis; VF, vitelline follicle.
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 4. Caulobothrium pieroi n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 4. Caulobothrium pieroi n. sp. from Pseudobatos horkelii (Müller and Henle), line drawings. A—Mature worm (holotype MACN-Pa No. 779). B—Scolex (holotype MACN-Pa No. 779). C—Terminal proglottid (paratype MACN-Pa No. 780/1).
FIGURE 5. Caulobothrium pieroi n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 5. Caulobothrium pieroi n. sp. from Pseudobatos horkelii (Müller and Henle), light micrographs of cross sections of a mature proglottid. A—Anterior to genital atrium. B—At the level of the genital atrium. C—posterior to the cirrus sac. D—At the level of the ovarian isthmus. Abbreviations: cs—cirrus sac, ov—ovary, t—testis, ud—uteroduct, ut—uterus, vf—vitelline follicle, vg—vagina, vod—ventral osmoregulatory duct.
FIGURE 2. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 2. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), scanning electron micrographs. A—Scolex, small letters indicate locations of detail shown in Figs. B, D and K. B—Detail of the anterior margin of bothridium including anteriomost loculi and transverse septum. C—Surface of loculus, gladiate spinitriches and acicular filitriches. D— Central constriction of bothridium. E—Proximal bothridial surface near bothridial margin, aristate gladiate spinitriches and capilliform filitriches. F—Proximal bothridial surface near stalk, large aristate gladiate spinitriches and capilliform filitriches. G—Surface of bothridial stalk, large aristate gladiate spinitriches and capilliform filitriches. H—Surface of transverse septum, aristate gladiate spinitriches and capilliform filitriches. I—Surface of apex of scolex, capilliform filitriches. J—Surface of cephalic peduncle, capilliform filitriches. K—Detail of posterior margin of bothridium, proximal surface.
FIGURE 1. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 1. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), line drawings. A—Mature worm (holotype MACN-Pa No. 777). B—scolex (paratype MACN-Pa No. 778/1). C—Terminal proglottid (holotype MACNPa No. 777). D—Detail of the terminal genitalia of a mature proglottid (holotype MACN-Pa No. 777).
FIGURE 3. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 3. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), light micrographs of cross sections of a mature proglottid. A—anterior to the genital atrium. B—at the level of the genital atrium showing the cirrus sac. C—at the level of the genital atrium showing the vagina. D—anterior to the ovarian isthmus. Abbreviations: cs—cirrus sac, dod—dorsal osmoregulatory duct, ov—ovary, t—testis, ut—uterus, vd—vas deferens, vf—vitelline follicle, vg—vagina, vod—ventral osmoregulatory duct.
FIGURE 6 in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 6. Light micrographs of Caulobothrium species from the southwestern Atlantic. A—Caulobothrium pieroi n. sp., detail of the anterior loculus with apical sucker (arrow) (holotype MACN-Pa No. 779). B—Caulobothrium pieroi n. sp., detail of the posterior loculus (double) (paratype MACN-Pa No. 780/2). C—Caulobothrium uruguayense, showing two columns of paired loculi (arrows) (paratype USNM No. 1371263). D—Caulobothrium ostrowskiae, anterior portion of bothridium showing a single anteriormost loculus (paratype USNM No. 1371264).
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