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37 results for “Trypanorhyncha”
FIGURES 9–14 in Redescriptions of four species of Otobothrium Linton, 1890 (Cestoda: Trypanorhyncha), including new records from Australia, New Caledonia and Malaysia, with the description of O. parvum n. sp.
FIGURES 9–14. Otobothrium curtum (Linton, 1909) based on specimens from New Caledonia. 9, Entire mature worm. 10, Scolex, lateral view. 11, Scolex, dorso-ventral view. 12, Bulb. 13, Mature segment. 14, Terminal genitalia. Scalebars: Fig. 9, 1.0 mm; Figs. 10-14, 0.1 mm.
FIGURES 6–8. Otobothrium crenacolle Linton, 1890 in Redescriptions of four species of Otobothrium Linton, 1890 (Cestoda: Trypanorhyncha), including new records from Australia, New Caledonia and Malaysia, with the description of O. parvum n. sp.
FIGURES 6–8. Otobothrium crenacolle Linton, 1890 based on specimens in MHNG. Basal and metabasal armature. 6, Internal surface. 7, External surface. 8, Antibothrial surface. Scale bar: 0.01 mm.
FIGURES 1–5. Otobothrium crenacolle Linton, 1890 in Redescriptions of four species of Otobothrium Linton, 1890 (Cestoda: Trypanorhyncha), including new records from Australia, New Caledonia and Malaysia, with the description of O. parvum n. sp.
FIGURES 1–5. Otobothrium crenacolle Linton, 1890 based on specimens in MHNG. 1, Entire mature cestode. 2, Scolex, lateral view. 3, Bulb. 4, Mature segment. 5, Terminal genitalia. Scale bars: Fig. 1, 1.0 mm; Fig. 3, 0.01 mm, Figs. 2,4,5, 0.1 mm.
FIGURE 10. Prochristianella scholzi n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 10. Prochristianella scholzi n. sp. from Taeniura lymma 1 (sensu Naylor et al. 2012). Tentacular armature. A. Basal and metabasal regions, external surface. B. Basal and metabasal regions, bothrial surface. C. Basal and metabasal regions, antibothrial surface; note opposing surface to (B) of the same tentacle.
FIGURE 8. Prochristianella kostadinovae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 8. Prochristianella kostadinovae n. sp. from Himantura uarnak 2 (sensu Naylor et al. 2012). Tentacular armature. A. Basal and metabasal regions, external surface. B. Basal and metabasal regions, antibothrial surface. C. Basal and metabasal regions, bothrial surface; note opposing surface to (B) of the same tentacle. D. Outlines of metabasal hooks.
FIGURE 9. Prochristianella scholzi n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 9. Prochristianella scholzi n. sp. from Taeniura lymma 1 (sensu Naylor et al. 2012). A. Partial specimen. B. Mature segment. C. Bulb. D. Scolex. E. Outlines of metabasal hooks. Abbreviations: cs, cirrus sac; gc, gland-cells; mg, Mehlis' gland; ov, ovary; rm, retractor muscle; sr, seminal receptacle; t, testis; vit, vitelline follicle.
FIGURE 7. Prochristianella kostadinovae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 7. Prochristianella kostadinovae n. sp. from Himantura uarnak 2 (sensu Naylor et al. 2012). A. Partial specimen. B. Mature segment. C. Scolex. D. Bulb. Abbreviations: cs, cirrus sac; gc, gland-cells; mg, Mehlis' gland; ov, ovary; rm, retractor muscle; t, testis; vit, vitelline follicle.
FIGURE 6. Prochristianella jensenae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 6. Prochristianella jensenae n. sp. from Pastinachus solocirostris. Scanning electron micrographs. A. Complete specimen. B. Scolex in lateral view. C. Tentacular armature; metabasal region, bothrial surface. D. Billhooks in lateral (left) and dorso-ventral (right) views. E. Tentacular armature, basal region, internal surface; note erect billhook. F. Tentacular armature, metabasal region, external surface.
FIGURE 5. Prochristianella jensenae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 5. Prochristianella jensenae n. sp. from Pastinachus gracilicaudus (A, D) and P. solocirostris (B, C). Tentacular armature. A. Basal and metabasal regions, internal surface. B. Metabasal region, antibothrial surface. C. Basal and metabasal regions, antibothrial surface. D. Basal and metabasal regions, bothrial surface.
FIGURE 4. Prochristianella jensenae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 4. Prochristianella jensenae n. sp. from Pastinachus solocirostris. A. Complete specimen. B. Scolex. C. Bulb; note absence of gland-cells. D. Mature segment. E. Gravid segment. Abbreviations: cs, cirrus sac; isv, internal seminal vesicle; mg, Mehlis' gland; ov, ovary; rm, retractor muscle; t, testis; ut, uterus; vit, vitelline follicle.
FIGURE 2. Prochristianella cairae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 2. Prochristianella cairae n. sp. from Chiloscyllium punctatum. Tentacular armature. A. Metabasal region, antibothrial surface. B. Metabasal region, bothrial surface; note opposing surface to (A) of the same tentacle. C. Distal region, internal surface. D. Basal region, external surface.
FIGURE 3. Prochristianella cairae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 3. Prochristianella cairae n. sp. from Chiloscyllium punctatum. Scanning electron micrographs. A. Scolex in dorsoventral view. B. Basal region, bothrial tentacular surface. C. Metabasal region, external tentacular surface. D. Lateral margin of bothrium, showing serrate spathulate spinitriches on proximal bothrial surface. E. Serrate spathulate spinitriches on pars vaginalis.
FIGURE 1. Prochristianella cairae n in Prochristianella Dollfus, 1946 (Trypanorhyncha: Eutetrarhynchidae) from elasmobranchs off Borneo and Australia, including new records and the description of four new species
FIGURE 1. Prochristianella cairae n. sp. from Chiloscyllium punctatum (A–C, E) and C. indicum (D). A. Complete specimen. B. Bulb. C. Scolex. D. Mature segment. E. Gravid segment. Abbreviations: cs, cirrus sac; gc, gland-cells; mg, Mehlis' gland; ov, ovary; rm, retractor muscle; t, testis; ut, uterus; vit, vitelline follicle.
Fig. 3 in Phylogenetic placement and microthrix pattern of Paranybelinia otobothrioides Dollfus, 1966 (Trypanorhyncha) from krill Nyctiphanes simplex Hansen, 1911
Fig. 3. Paranybelinia otobothrioides anatomy showing details of the bothria (Bo), tentacles (Te), appendix (Ap), bulbs (Bu), and velum (Ve). The arrows show the muscular rings surrounding the tentacle sheaths. Scale = 60 μm.
Fig. 1 in Phylogenetic placement and microthrix pattern of Paranybelinia otobothrioides Dollfus, 1966 (Trypanorhyncha) from krill Nyctiphanes simplex Hansen, 1911
Fig. 1. Paranybelinia otobothrioides parasitizing the subtropical krill Nyctiphanes simplex collected in the Gulf of California, Mexico. (A) Alive Pa. otobothrioides observed in the hemocoel of the host. (B) Histological section showing longitudinal view of Pa. otobothrioides inside the blastocyst. (C,D) Blastocyst containing the plerocercus of the same specimen, note the contraction (C) and expanding (D) movement of the blastocyst. (E) Pa. otobothrioides scolex dissected from the blastocyst. (F) Scanning electron microscope external view of the blastocyst, showing single distinct projectable centrally oriented porous-like terminal end (anterior), and 2 lateral and 1 central cone terminal projection (posterior end). (G,H) Detail of funnel openings at the anterior and posterior end. Scale bars: (A–F) 100 μm, (G) 5 μm, (H) 30 μm.
Fig. 4 in Phylogenetic placement and microthrix pattern of Paranybelinia otobothrioides Dollfus, 1966 (Trypanorhyncha) from krill Nyctiphanes simplex Hansen, 1911
Fig. 4. Surface ultrastructure of the scolex of Paranybelinia otobothrioides. (A) Anterolateral bothrial margins showing the distribution pattern of hamulate spinitriches with extended bases. (B,C) Hamulate spinitriches along the bothrial margins and on the distal bothrial surface. (D) Lineate spinitriches on the posterior margins of the bothria. (E) Tegumental groove at the posterior part of the bothria surrounded by lineate spinitriches and capilliform filitriches on the pars postbulbosa (also on pars vaginalis and bulbosa). (F) Tegumental groove at the posterior part of the bothria showing similar spinitriches (lineate or hamulate) to the surrounding bothrial surface. (G) Posterior end of appendix. (H) Appendix covered with papilliform filitriches. Scale bars: A, C, 100 μm; D-H, 50 μm.
FIG. 3 in Tentaculariids (Cestoda, Trypanorhyncha) of elasmobranchs from Malaysian Borneo
FIG. 3. — Surface ultrastructure of Nybelinia pseudafricana n. sp.: A, typical muscular scolex with triangular shaped bothria; B, metabasal armature; C, basal and metabasal armature; D, series of pores at the base of tentacular hooks; E, capilliform filitriches between the bothria; F, lineate spinitriches along bothrial borders with capilliform filitriches on proximal bothrial surface; G, lineate spinitriches at bothrial border with papilliform filitriches on distal bothrial surface. Scale bars: A, 30 µm; B, C, 10 µm; D-F, 2 µm; G, 6 µm.
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