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54 results for “Eucestoda”
FIGURE 2 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 2. Arostrilepis gulyaevi sp. n. A. Holotype, dorsoventral view of scolex (ISEA 18.28.8.1); B. Paratype, sublateral view of scolex (MSB 1261); C. Holotype, male mature proglottides; D. Holotype, hermaphroditic mature proglottides. Scale bars: A, B = 200 µm; C, D = 500 µm.
FIGURE 10 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 10. Arostrilepis cf. janickii Makarikov & Kontrimavichus, 2011 based on voucher specimen from the Nearctic. A. Dorsoventral view of scolex (MSB 1268); B. Cirrus (MSB 1268); C. Hermaphroditic mature proglottis (MSB 1268). Scale bars: A = 200 µm; B = 20 µm; C = 500 µm.
FIGURE 9 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 9. Arostrilepis macrocirrosa Makarikov, Gulyaev & Kontrimavichus, 2011 based on voucher specimen from the Nearctic. A. Dorsoventral view of scolex (MSB 1285); B. Cirrus (MSB 1302); C. Hermaphroditic mature proglottis (MSB 1306); D. Egg (MSB 1306). Scale bars: A = 200 µm; B, D = 20 µm; C = 500 µm.
FIGURE 6 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 6. Arostrilepis rauschorum sp. n. A. Paratype (MSB 1371), dorsoventral view of scolex; B. Paratype (MSB 1370), sublateral view of scolex; C. Holotype, male mature proglottides (MSB 1208); D. Holotype, hermaphroditic mature proglottis. Scale bars: A, B = 200 µm; C, D = 500 µm.
FIGURE 3 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 3. Arostrilepis gulyaevi sp. n. A. Paratype, cirrus (ISEA 18.28.8.8); B. Paratype, egg (MSB 1254); C - holotype, distal part of the vagina (ISEA 18.28.8.1); D. Holotype, posmature proglottis, showing uterus development; E. Holotype, gravid proglottis. Scale bars: A, B = 20 µm; C = 100 µm; D, E = 500 µm.
FIGURE 12 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 12. Cirrus structure among species of Arostrilepis including newly designated and Holarctic taxa. A. A. rauschorum sp. n.; B. A. gulyaevi sp. n.; C. A. cooki sp. n.; D. A. beringiensis; E. A. c.f. janickii; F. A. macrocirrosa. Scale bar: 20 µm.
FIGURE 11 in Parasite diversity at the Holarctic nexus: species of Arostrilepis (Eucestoda: Hymenolepididae) in voles and lemmings (Cricetidae: Arvicolinae) from greater Beringia
FIGURE 11. Cirrus structure among species of Arostrilepis. A. A. horrida; B. A. beringiensis; C. A. microtis (paratype ISEA 756); D. A. tenuicirrosa; E. A. macrocirrosa; F. A. janickii; G. A. intermedia; H. A. schilleri; I. A. mariettavogeae. Scale bar: 20 µm. (A,D,E after Makarikov et al. 2011; B,F,G after Makarikov & Kontrimavichus 2011; H,I after Makarikov et al. 2012).
FIGURE 6 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 6. Line drawings of Rhinebothrium reydai n. sp. A. Scolex (MIUP CR1, Holotype), B. Terminal, mature proglottid in which testes are atrophied (MZUSP 7931b, Paratype), C. Cirrus-sac (MZUSP 7931p, Paratype), D. Subterminal, mature proglottid (MZUSP 7931b, Paratype).
FIGURE 8 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 8. Micrographs of transversal histological sections of Rhinebothrium reydai n. sp. (MZUSP 7933a–7933d, Paratypes). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.
FIGURE 3 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 3. Scanning electron micrographs of Rhinebothrium tetralobatum (MZUSP 7928–7929, Vouchers). A. Scolex, B. Proximal surface of anterior loculus, C. Proximal surface near centre of bothridium, D. Distal surface near centre of bothridium, E. Distal surface of transverse septa, F. Distal surface near longitudinal septum in anterior region of bothridium, G. Proximal surface in posterior region of bothridium, H. Surface of anterior portion of strobila.
FIGURE 5 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 5. Light micrograph of the holotype of Rhinebothrium reydai n. sp. from Styracura schmardae (MIUP CR1).
FIGURE 4 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 4. Micrographs of transverse histological sections of Rhinebothrium tetralobatum (MZUSP 7930a–7930c, Vouchers). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.
FIGURE 2 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 2. Line drawings of Rhinebothrium tetralobatum. A. Scolex (HWML 110067, Voucher), B. Cirrus-sac, C. Subterminal, mature proglottid, D. Terminal, mature proglottid in which testes are atrophied (HWML 110071, Voucher).
FIGURE 7 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 7. Scanning electron micrographs of Rhinebothrium reydai n. sp. (MZUSP 7932, Paratype). A. Scolex, B. Proximal surface of anterior loculus, C. Proximal surface near centre of bothridium, D. Distal surface near centre of bothridium, E. Distal surface of transverse septa, F. Distal surface near longitudinal septum in anterior region of bothridium, G. Proximal surface in posterior region of bothridium, H. Surface of anterior portion of strobila.
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.
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