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18 results for “Proteocephalidea”
FIGURES 36–40 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 36–40. Eggs of Proteocephalus synodontis Woodland, 1925 from Synodontis schall, Lake Turkana, Kenya (36, 37) and S. schall, Khartoum, Sudan (38), and P. membranacei Troncy, 1978 from S. membranacea, Lake Chad, Chad (39, 40). Fig. 39—syntype of P. membranacei (MNHNP 1116H); Fig. 40—syntype of P. largoproglottis (= syn. of P. membranacei; MNHNP 1115H). Abbreviations: em—embryophore; oe—outer envelope; on—oncosphere. Scale bars = 20 µm.
FIGURES 25–35. Proteocephalus synodontis Woodland, 1925 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 25–35. Proteocephalus synodontis Woodland, 1925 from Synodontis schall, Lake Turkana, Kenya (25–33) and P. membranacei from S. membranacea, Lake Chad, Chad. 25. Scolex, dorsoventral view (note accumulation of gland cells in the apical region—gc). 26. Scolex, longitudinal section. 27, 28, 34, 35. Cross sections of pregravid proglottides at the level of ovary (27, 34), cirrus-sac (28) and testes (35). 29. Premature proglottis, dorsal view. 30, 31. Gravid proglottides of different shape, ventral view. 32. Pregravid proglottis, ventral view. 33. Terminal genitalia, ventral view (note vaginal sphincter—vs). Fig. 34—syntype of P. membranacei (MNHNP 1116H); Fig. 35—syntype of P. largoproglottis (= syn. of P. membranacei; MNHNP 1115H). Abbreviations: cm—circular musculature of suckers; cs—cirrus-sac; do—dorsal osmoregulatory canals; dv—dorsoventral muscle fibres; gc—gland cells; lm—longitudinal internal musculature; mg—Mehlis' gland; od—oviduct; ov—ovary; sc—secondary osmoregulatory canals; sd—sperm duct (vas deferens); te—testes; ud—uterine diverticulum; uouterine orifice; ut—uterus; vd—vitelloduct; vi—vitelline follicles; vo—ventral osmoregulatory canals; vs—vaginal sphincter. Scale bars = 500 μm (25–32, 34, 35); 250 µm (33).
FIGURES 14–24. Proteocephalus synodontis Woodland, 1925. 14 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 14–24. Proteocephalus synodontis Woodland, 1925. 14, Holotype (BMNH 1961.4.10.87–102), Khartoum, Sudan, scolex, dorsoventral view. 15, 17–20. Apical organs. 15. Holotype, Khartoum. 17. From Synodontis schall, Girba, Sudan; 18. Immature tapeworm from Synodontis schall, Lake Turkana, Kenya; 19. From Synodontis schall, Kostí, Sudan; 20. From Synodontis caudovittata, Kostí, Sudan. 21, 24. Immature proglottides from S. caudovittata, Kostí, Sudan. 22. Holotype, immature proglottis (note median extent of testes not reaching to uterine stem). 23. Holotype, cross section of gravid proglottis. Abbreviations: ao—apical organ; cs—cirrus-sac; do—dorsal osmoregulatory canals; dv—dorsoventral muscle fibres; gc—gland cells; lm—longitudinal internal musculature; ov—ovary; sd—sperm duct (vas deferens); te—testes; ud—uterine diverticulum; uouterine orifice; ut—uterus; vc—vaginal canal; vi—vitelline follicles; vo—ventral osmoregulatory canals. Scale bars = 100 μm (14, 16, 21–24); 50 µm (15, 17–20).
FIGURES 1–13 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 1–13. Scanning electron micrographs of the scoleces of Proteocephalus spp. from Synodontis catfish: P. synodontis Woodland, 1925 from S. schall, Lake Turkana, Kenya (1–3, 7, 8) and from S. schall, Kostí, Sudan (4–6); P. membranacei Troncy, 1978 from S. membranacea, Lake Chad, Chad, syntype (MNHNP 1116H; 9, 10); P. largoproglottis (= syn. of P. m e m - branacei), syntype (MNHNP 1115H; 11–13). 1, 4, 9, 11. Dorsoventral view. 2, 5, 10, 13. Lateral view. 3, 6, 12. Apical view. 7, 8. Papilliform filitriches on the external rim and internal surface of suckers, respectively (see Fig. 1). Scale bars = 100 μm (1–6, 9, 11–13); 50 μm (10); 3 μm (7, 8).
FIGURES 11–16 in Macrobothriotaenia ficta (Cestoda: Proteocephalidea), a parasite of sunbeam snake (Xenopeltis unicolor): example of convergent evolution
FIGURES 11–16. Macrobothriotaenia ficta (Meggitt, 1931) from Xenopeltis unicolor. 11–13. Flattened scolex of mounted specimens (11, 12. adult specimen. 13. juvenile specimen, Vietnam, MHNG-PLAT 45476). 14, 15. Mature and pregravid proglottides, respectively, dorsal view, Thailand (BMNH 1976.4.13.14–15). 16. Gravid proglottis, ventral view, Vietnam (MHNG-PLAT 75454). Abbreviations: dc—dorsal osmoregulatory canals; vc—ventral osmoregulatory canals.
FIGURE 22 in Macrobothriotaenia ficta (Cestoda: Proteocephalidea), a parasite of sunbeam snake (Xenopeltis unicolor): example of convergent evolution
FIGURE 22. Macrobothriotaenia ficta (Meggitt, 1931) from Xenopeltis unicolor. Unmounted scolex, apical view (left) and view from lower side (right), Vietnam (MHNG-PLAT 75454).
FIGURES 17–21 in Macrobothriotaenia ficta (Cestoda: Proteocephalidea), a parasite of sunbeam snake (Xenopeltis unicolor): example of convergent evolution
FIGURES 17–21. Macrobothriotaenia ficta (Meggitt, 1931) from Xenopeltis unicolor. 17–19. Cross-sections of mature (17) and pregravid (18, 19) proglottides at level of anterior part (17, 18), and at level of ovary (19). 20. Terminal genitalia, ventral view, Thailand (BMNH 1976.4.13.14–15). 21. Eggs in distilled water, with collapsed outer hyaline envelope, Vietnam (MHNG-PLAT-75454). Abbreviations: dc—dorsal osmoregulatory canals; vc—ventral osmoregulatory canals.
FIGURES 1–10 in Macrobothriotaenia ficta (Cestoda: Proteocephalidea), a parasite of sunbeam snake (Xenopeltis unicolor): example of convergent evolution
FIGURES 1–10. Macrobothriotaenia ficta (Meggitt, 1931) from Xenopeltis unicolor. Scanning electron micrographs. 1. Scolex, apical view. 2. Scolex, lateral view. 3. Detail of a sucker, apical view. 4. Lower part of the exterior surface of a sucker. 5. Capilliform filitriches at level of the apex surface. 6. Capilliform filitriches at the upper marginal surface of a sucker. 7. Luminal surface of suckers covered with capilliform filitriches and few gladiate spinitriches. 8. Non-adherent surface of suckers covered with long capilliform filitriches and few gladiate spinitriches. 9, 10. Posterior part of suckers and proliferation zone covered with long gladiate spinitriches. Note: small black numbers correspond to the figures showing higher magnification images of these surfaces.
FIGS 7-10 in Pseudocrepidobothrium ludovici sp. n. (Eucestoda: Proteocephalidea), a parasite of Phractocephalus hemioliopterus (Pisces: Pimelodidae) from Brazilian Amazon
FIGS 7-10. Pseudocrepidobothrium ludovici sp. n. from Phractocephalus hemioliopterus. (7) MHNG INVE 79281, paratype. Scolex, dorsoventral view. (8) MHNG INVE 22003, holotype. Mature proglottis, ventral view. (9) Mature proglottis, dorsal view; note secondary canals of the ventral osmoregulatory canals. (10) Gravid proglottis, ventral view. Abbreviations: do = dorsal osmoregulatory canal; mg = Mehlis gland; ov = ovary; sc = secondary canal; te = testes; ut = uterus; va = vas deferens; vd = vitelloduct; vi = vitellaria; vo = ventral osmoregulatory canal. Scale-bars: 7 = 250 µm; 8-10 = 500 µm.
FIGS 1-6 in Pseudocrepidobothrium ludovici sp. n. (Eucestoda: Proteocephalidea), a parasite of Phractocephalus hemioliopterus (Pisces: Pimelodidae) from Brazilian Amazon
FIGS 1-6. Pseudocrepidobothrium ludovici sp. n. from Phractocephalus hemioliopterus. Scanning electron photomicrographs. MHNG INVE 79302, paratype. (1) Scolex, dorsoventral view, with a anterior part of strobila. (2) Scolex, apical view. (3) Scolex, lateral view. (4) Scolex, dorsoventral view. (5) Detail of a sucker. (6) Capilliform filitriches near the center of the apical region. Scale-bars: 1 = 300 µm; 2 = 130 µm; 3 = 95 µm; 4 = 110 µm; 5 = 60 µm; 6 = 3 µm.
FIGS 11-16 in Pseudocrepidobothrium ludovici sp. n. (Eucestoda: Proteocephalidea), a parasite of Phractocephalus hemioliopterus (Pisces: Pimelodidae) from Brazilian Amazon
FIGS 11-16. Pseudocrepidobothrium ludovici sp. n. from Phractocephalus hemioliopterus. (11) MHNG INVE 79283, paratype. Cirrus-sac and vagina, dorsal view; note the presence of a vaginal sphincter. (12) Schematic view of the uterus in gravid proglottis. (13) MHNG INVE 79341, paratype. Pregravid proglottis, transverse section at testes level. (14) MHNG INVE 79341, paratype. Pregravid proglottis, transverse section at ovarian level. (15, 16) Eggs in distilled water, captured with Leica DMLB, showing the bi-layered embryophore. (15) IPCAS C-610, (Field number Br 649 3/5w). (16) MHNG INVE 22103, (field number Br 445). Abbreviations: ci = cirrus; cs = cirrus-sac; do = dorsal osmoregulatory canal; em = embryophore; lm = internal longitudinal musculature; ln = longitudinal lateral nerves; oe = outer envelope; om = oncospheric membrane; on = oncosphere; ov = ovary; te = testes; ut = uterus; va = vas deferens; vc = vaginal canal; vi = vitellaria; vo = ventral osmoregulatory canal; vs = vaginal sphincter. Scale-bars: 12 = 500 µm; 11, 13, 14 = 250 µm; 15, 16 = 20 µm.
FIGS 8-12 in Ophiotaenia lapata sp. n. (Eucestoda: Proteocephalidea) from Madagascar: a parasite of the endemic snake Madagascarophis colubrinus (Colubridae)
FIGS 8-12 Ophiotaenia lapata sp. n. (8) Holotype, scolex, dorsoventral view (MHNG-PLAT-79567). (9) Paratype, vagina and cirrus-sac region, dorsal view (MHNG-PLAT-79568). (10-11) Transverse sections of a mature proglottis at level of anterior part and ovary, respectively (MHNG-PLAT-82167). (12) Eggs drawn in distilled water showing the three-layered embryophore (MHNG-PLAT-82172); additional layer marked by an arrow. Abbreviations: ao – apical organ; cg – cells with finely granular cytoplasm; ci – cirrus; cs – cirrus-sac; do – dorsal osmoregulatory canal; em – embryophore; lm – internal longitudinal musculature; mg – Mehlis glands; nl – longitudinal nerve; oe – outer envelope; on – oncospheres; ov – ovary; sc – subtegumental cells; so – small outgrowths; te – testes; ud – uterine diverticles; ut – uterus; va – vas deferens; vc – vaginal canal; vd – vitelloduct; vi – vitelline follicles; vo – ventral osmoregulatory canals; vs – vaginal sphincter. Scale-bars: 8 = 100 µm; 9 = 250 µm; 10–11 = 500 µm; 12 = 50 µm.
FIGS 1-7 in Ophiotaenia lapata sp. n. (Eucestoda: Proteocephalidea) from Madagascar: a parasite of the endemic snake Madagascarophis colubrinus (Colubridae)
FIGS 1-7 Ophiotaenia lapata sp. n. Scanning electron micrographs. Paratype (MHNG-PLAT-82166, field number Mad 007HFx). (1) Scolex, apical view (2) Scolex, dorsoventral view. (3) Scolex, lateral view. (4) Capilliform filitriches at level of the apex of the scolex. (5) Capilliform filitriches and small gladiate spinitriches at marginal surface of sucker. (6) Capilliform filitriches and small gladiate spinitriches at non-adherent surface of sucker (7) Gladiate spinitriches at proliferation zone surface. Scale-bars: 1-3 = 50 µm; 4-7 = 3 µm.
FIGS 7, 8 in Ophiotaenia oumanskyi sp. n. (Eucestoda: Proteocephalidea), a parasite of Lepidobatrachus laevis Budgett, 1899 (Anura: Leptodactylidae) from Paraguay
FIGS 7, 8 Ophiotaenia oumanskyi sp. n. from Lepidobatrachus laevis. (7) MHNG-PLAT-62560, holotype, mature proglottis, dorsal view. (8) MHNG-PLAT-82004, paratype. Gravid proglottis, ventral view. Scale-bars: 7, 8 = 500 µm.
FIGS 1-6 in Ophiotaenia oumanskyi sp. n. (Eucestoda: Proteocephalidea), a parasite of Lepidobatrachus laevis Budgett, 1899 (Anura: Leptodactylidae) from Paraguay
FIGS 1-6 Ophiotaenia oumanskyi sp. n. from Lepidobatrachus laevis. (1) MHNG-PLAT-62560, holotype 1. Scolex, dorsoventral view. (2) MHNG-PLAT-82004, paratype. Cirrus-sac and vagina, dorsal view; note the presence of a vaginal sphincter. (3) MHNG-PLAT-82005, paratype. Mature proglottis, transverse section at posterior part level. (4) MHNG-PLAT-82005, paratype. Mature proglottis, transverse section at ovarian level. (5) Cross-section of gravid proglottis, at level of anterior part (6) MHNG-PLAT-82005, paratype 2. Eggs drawn in distilled water. Abbreviations: cg = glandular cells, probably of exocrine type, ci = cirrus, cs = cirrus-sac, do = dorsal osmoregulatory canal, em = embryophore, lm = internal longitudinal musculature, ln = longitudinal lateral nerves, oe = outer envelope, on = oncosphere, ov = ovary, sc = subtegumental cells; st = subtegumental muscle fibres, te = testes, tg = tegument, ud = uterine diverticula, ut = uterus, va = vas deferens, vc = vaginal canal, vi = vitelline follicles, vo = ventral osmoregulatory canal, vs = vaginal sphincter. Scale-bars: 1, 5 = 250 µm; 2 = 100 µm, 3-4 = 500 µm, 6 = 20 µm.
FIGS 13-14 in Ophiotaenia lapata sp. n. (Eucestoda: Proteocephalidea) from Madagascar: a parasite of the endemic snake Madagascarophis colubrinus (Colubridae)
FIGS 13-14
FIGS 1-7 in Ophiotaenia lapata sp. n. (Eucestoda: Proteocephalidea) from Madagascar: a parasite of the endemic snake Madagascarophis colubrinus (Colubridae)
FIGS 1-7
FIGS 13-14 in Ophiotaenia lapata sp. n. (Eucestoda: Proteocephalidea) from Madagascar: a parasite of the endemic snake Madagascarophis colubrinus (Colubridae)
FIGS 13-14 Ophiotaenia lapata sp. n. (13) Paratype, mature proglottis, ventral view (MHNG-PLAT-79568). (14) Paratype, schematic view of a gravid proglottis, ventral view (UADBA No 50001). Abbreviations: cs – cirrus-sac; mg – Mehlis glands; ov – ovary; te – testes; ud – uterine diverticles; ut – uterus; va – vagina; vi – vitelline follicles; vo – ventral osmoregulatory canals. Scalebars: 13 = 500 µm; 14 = 1000 µm.
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