Folia Parasitologica 55[1] 42-52 (2008) | DOI: 10.14411/fp.2008.006

A standardised terminology of the embryonic envelopes and associated developmental stages of tapeworms (Platyhelminthes: Cestoda)

David Bruce Conn1, Zdzisław Świderski2,3
1 School of Mathematical and Natural Sciences, Berry College, Mount Berry, Georgia 30149-5036, USA
2 W. Stefański Institute of Parasitology, Polish Academy of Sciences, 51/55 Twarda Str., 00-818 Warsaw, Poland
3 Department of General Biology and Parasitology, Medical University of Warsaw, 5 Chałubińskiego Str., 02-004 Warsaw, Poland

Over the past 40 years, much has been published on the ultrastructure and cellular development of embryonic structures in a wide range of cestodes. However, the literature contains many discrepancies in both terminology and interpretations because of the facts that these organisms are phylogenetically diverse within their respective orders and families, the habitats that affect embryonic envelope structure are diverse, and the work has been done in various laboratories around the world. This review and synthesis was initiated by a working group of biologists from around the world convened at the Fifth International Workshop on Cestode Systematics and Phylogeny in České Budĕjovice, at the Institute of Parasitology of the Biology Centre, Academy of Sciences of the Czech Republic. It brings together the data from published work and establishes a uniform terminology and interpretation based on the data as they are presented. A consensus was reached for standardised definitions of the oncosphere, hexacanth, coracidium, embryonic envelopes, outer envelope, inner envelope, embryophore, vitelline capsule, shell, and outer coat. All of these are defined as components of the embryo or its vitellocyte-derived or uterine-derived coatings.

Keywords: Cestoda, coracidium, embryogenesis, hexacanth, embryonic envelope, oncosphere sphere, hexacanth, coracidium, embryonic envelopes, outer envelope, inner envelope, embryophore, vitelline capsule, shell, and

Received: November 2, 2007; Accepted: December 18, 2007; Published: March 1, 2008  Show citation

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Conn, D.B., & Świderski, Z. (2008). A standardised terminology of the embryonic envelopes and associated developmental stages of tapeworms (Platyhelminthes: Cestoda). Folia Parasitologica, 55(1), 42-52. doi: 10.14411/fp.2008.006
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    References

    1. BERRADA-RKHAMI O., GABRION C. 1990: The fine structure of the embryonic envelopes before and after hatching in bothriocephalids: physiological and ecological significance. Parasitol. Res. 76: 251-262 Go to original source... Go to PubMed...
    2. BEVERIDGE I., RICKARD M.D., GREGORY G.G., MUNDAY B.L. 1975: Studies on Anoplotaenia dasyuri Beddard, 1911 (Cestoda: Taeniidae), a parasite of the Tasmanian Devil: observations on the egg and metacestode. Int. J. Parasitol. 5: 257-267 Go to original source... Go to PubMed...
    3. BRABEC J., KUCHTA R., SCHOLZ T. 2006: Paraphyly of the Pseudophyllidea (Platyhelminthes: Cestoda): circumscription of monophyletic clades based on phylogenetic analysis of ribosomal RNA. Int. J. Parasitol. 36: 1535-1541 Go to original source... Go to PubMed...
    4. BRUNANSKA M. 1999: Ultrastructure of primary embryonic envelopes in Proteocephalus longicollis (Cestoda: Proteocephalidae). Helminthologia 36: 83-89
    5. BURT M.D.B. 1986: Early morphogenesis in the Platyhelminthes with special reference to egg development and development of cestode larvae. In: M.J. Howell (Ed.), Parasitology - Quo vadit? Australian Academy of Science, Canberra, pp. 241- 253 Go to original source...
    6. CANEDA-GUZMAN I.C., DE CHAMBRIER A., SCHOLZ T. 2001: Thaumasioscolex didelphidis n. gen., n. sp. (Eucestoda: Proteocephalidae) from the black-eared opossum Didelphis marsupialis from Mexico, the first proteocephalidean tapeworm from a mammal. J. Parasitol. 87: 639-646 Go to original source... Go to PubMed...
    7. CHERVY L. 2002: The terminology of larval cestodes or metacestodes. Syst. Parasitol. 52: 1-33 Go to original source... Go to PubMed...
    8. CHEW M.W.K. 1983: Taenia crassiceps: ultrastructural observations on the oncosphere and associated structures. J. Helminthol. 57: 101-113 Go to original source... Go to PubMed...
    9. CHOMICZ L. 1993: Ultrastructural studies on the oncospheral envelopes of six species of genus Diorchis (Cyclophyllidea, Hymenolepididae). Acta Parasitol. 38: 161-165
    10. CHOMICZ L. 1996: Comparative ultrastructural studies on uterusegg interrelations in some species of hymenolepidids (Cestoda) with aquatic life cycles. Acta Parasitol. 41: 191- 198
    11. CHOMICZ L., CIELECKA D., WALSKI M., CZUBAJ A. 1997: Ultrastructural studies on the oncospheral envelopes of hymenolepidid cestode, Wardium aequabile (Rudolphi, 1810) Spassky et Spasskaya, 1954, in the final stage of infective egg formation. Acta Parasitol. 42: 40-45
    12. CHOMICZ L., CZUBAJ A. 1991: Transmission electron micrograph studies of developing oncospheral envelopes of Fimbriaria fasciolaris (Hymenolepididae). Parasitol. Res. 77: 503-508 Go to original source... Go to PubMed...
    13. CHOMICZ L., GRYTNER-ZIECINA B. WALSKI M. 1995a: Morphological studies on envelopes of oncospheres of the hymenolepidid cestode, Fimbriaria fasciolaris (Pallas, 1781). Acta Parasitol. 40: 26-30
    14. CHOMICZ L., SWIDERSKI Z., CZUBAJ A. 1995b: Ultrastructure of the oncospheral envelopes in Hymenolepididae (Cestoda) with aquatic life cycles. Hydrobiologia 305: 213-216 Go to original source...
    15. CHOMICZ L., SWIDERSKI Z., GRYTNER-ZIECINA B. 1995c: Ultrastructure of the oncospheral envelopes and their differentiation in the cestode, Dicranotaenia coronula (Dujardin, 1845) (Cyclophyllidea, Hymenolepididae). Acta Parasitol. 40: 31- 36
    16. CHOMICZ L., WALSKI M. 1991: Ultrastructure of oncospheral envelopes of Diorchis elisae (Skrjabin, 1914) Spassky et Frese, 1961 (Cestoda, Hymenolepididae). Parasitol. Res. 77: 550-552 Go to original source... Go to PubMed...
    17. COIL W.H. 1972: Studies on the dioecious tapeworm Gyrocoelia pagollae with emphasis on bionomics, oogenesis, and embryogenesis. Z. Parasitenkd. 39: 183-194 Go to original source... Go to PubMed...
    18. COIL W.H. 1975: The histochemistry and fine structure of the embryophore of Shipleya inermis (Cestoda). Z. Parasitenkd. 48: 9-14 Go to original source... Go to PubMed...
    19. COIL W.H. 1979: Studies on the embryogenesis of the tapeworm Cittotaenia variabilis (Stiles, 1895) using transmission and scanning electron microscopy. Z. Parasitenkd. 59: 151-159 Go to original source... Go to PubMed...
    20. COIL W.H. 1984: Studies on the development of Dioecocestus acotylus (Cestoda) with emphasis on the scanning electron microscopy of embryogenesis. Proc. Helminthol. Soc. Wash. 51: 113-120
    21. COIL W.H. 1986: The early embryology of Hymenolepis diminuta (Cestoda). Proc. Helminthol. Soc. Wash. 53: 38-47
    22. CONN D.B. 1985a: Fine structure of the embryonic envelopes of Oochoristica anolis (Cestoda: Linstowiidae). Z. Parasitenkd. 71: 639-648 Go to original source...
    23. CONN D.B. 1985b: Scanning electron microscopy and histochemistry of embryonic envelopes of the porcupine tapeworm, Monoecocestus americanus (Cyclophyllidea: Anoplocephalidae). Can. J. Zool. 63: 1194-1198 Go to original source...
    24. CONN D.B. 1985c: Fine structure of the embryo packets and uterus of Mesocestoides lineatus (Cestoda: Cyclophyllidea). Trans. Am. Microsc. Soc. 104: 106
    25. CONN D.B. 1987a: Fine structure, development and senescence of the uterine epithelium of Mesocestoides lineatus (Cestoda: Cyclophyllidea). Trans. Am. Microsc. Soc. 106: 63-73 Go to original source...
    26. CONN D.B. 1987b: Synchronism of maternal uterine development and late embryogenesis of Oochoristica anolis (Cestoda: Cyclophyllidea). Trans. Am. Microsc. Soc. 106: 97-98
    27. CONN D.B. 1988a: Development of the embryonic envelopes of Mesocestoides lineatus (Cestoda: Cyclophyllidea). Int. J. Invertebr. Reprod. Devel. 14: 119-130 Go to original source...
    28. CONN D.B. 1988b: The role of cellular parenchyma and extracellular matrix in the histogenesis of the paruterine organ of Mesocestoides lineatus (Platyhelminthes: Cestoda). J. Morphol. 197: 303-314 Go to original source... Go to PubMed...
    29. CONN D.B. 1988c: Are vitelline cell globules a mechanism for polyspermy prevention in cyclophyllidean cestodes? Trans. Am. Microsc. Soc. 107: 106
    30. CONN D.B. 1993a: Ultrastructure of the gravid uterus of Hymenolepis diminuta (Platyhelminthes: Cestoda). J. Parasitol. 79: 583-590. Go to original source... Go to PubMed...
    31. CONN D.B. 1993b: The biology of flatworms (Platyhelminthes): Parenchyma cells and extracellular matrices. Trans. Am. Microsc. Soc. 112: 241-261 Go to original source...
    32. CONN D.B. 1999: Ultrastructure of the embryonic envelopes and associated maternal structures of Distoichometra bufonis (Platyhelminthes: Cestoidea: Nematotaeniidae). Acta Parasitol. 43: 4-10
    33. CONN D.B. 2000: Atlas of Invertebrate Reproduction and Development, 2nd Edition. John Wiley & Sons, Inc., New York, 315 pp
    34. CONN D.B. 2004a: Reproduction, development, and life history. In: Grzimek's Animal Life Encyclopedia, 2nd Edition. Vol. 1: Lower Metazoans and Lesser Deuterostomes. Gale Group Publishers, Farmington Hills, Michigan, pp. 15-24
    35. CONN D.B. 2004b: Reproduction, development, and life history. In: Grzimek's Animal Life Encyclopedia, 2nd Edition. Vol. 2: Protostomes. Gale Group Publishers, Farmington Hills, Michigan, pp. 15-24
    36. CONN D.B. 2004c: Comparative aspects of postembryonic development of cestodes (Platyhelminthes) and other animal taxa. In: S. Mas-Coma (Ed.), Multidisciplinarity for Parasites, Vectors and Parasitic Diseases: Proceedings of the IX European Multicolloquium of Parasitology. Vol. 1. Articles of Keynote Speakers. Monduzzi Editore, Bologna, Italy, pp. 319-325
    37. CONN D.B. 2005: Glossary of cestode embryonic and larval structures. Wiad. Parazytol. 51: 266
    38. CONN D.B. 2007: Recent advances in the reproductive and developmental biology of Trematoda and Cestoda. Wiad. Parazytol. 53 (Suppl.): 6
    39. CONN D.B., ETGES F.J. 1982a: Fine structure of mature eggs and paruterine organ of Mesocestoides sp. (Cestoda). Mol. Biochem. Parasitol. 5 (Suppl.): 705-706
    40. CONN D.B., ETGES F.J. 1982b: Fine structure of strobilar tegument, parenchyma and egg capsules of Oochoristica anolis (Cestoda: Linstowiidae). Am. Zool. 22: 951
    41. CONN D.B., ETGES F.J. 1983: Inhibition of egg production in an anomalous Plagitura salamandra Holl, 1928 (Trematoda: Plagiorchiidae). J. Parasitol. 69: 784-786 Go to original source...
    42. CONN D.B., ETGES F.J. 1984: Fine structure and histochemistry of the parenchyma and uterine egg capsules of Oochoristica anolis (Cestoda: Linstowiidae). Z. Parasitenkd. 70: 769-779 Go to original source...
    43. CONN D.B., ETGES F.J., SIDNER R.A. 1984: Fine structure of the gravid paruterine organ and embryonic envelopes of Mesocestoides lineatus (Cestoda). J. Parasitol. 70: 68-77 Go to original source...
    44. CONN D.B., FORMAN L.A. 1990: Structural relationships between the eggs, uterine epithelium, and musculoparenchyma of Hymenolepis diminuta and Hymenolepis citelli (Platyhelminthes: Eucestoda). Trans. Am. Microsc. Soc. 109: 116-117
    45. CONN D.B., FORMAN L.A. 1993: Morphology and fine structure of the gravid uterus of three hymenolepidid tapeworm species (Platyhelminthes: Cestoda). Invertebr. Reprod. Devel. 23: 95- 103 Go to original source...
    46. CONN D.B., KISSEL G.E. 1991: Ultrastructure of the embryonic envelopes of tapeworms of the genus Vampirolepis (Platyhelminthes: Cyclophyllidea: Hymenolepididae). Trans. Am. Microsc. Soc. 110: 86-87
    47. CONN D.B., MLOCICKI D., SWIDERSKI Z. 2007: In-utero embryogenesis and uterine structure of Corallobothrium fimbriatum (Cestoda: Proteocephalidea) parasitic in Ictalurus nebulosus in the St. Lawrence River of North America. Parassitologia 49 (Suppl. 2): 389
    48. CONN D.B., ROCCO L.J. 1989: Fine structure of the cellular parenchyma and extracellular matrix of Ophiotaenia loennbergii (Cestoda: Proteocephalidea). Acta Zool. (Stockh.) 70: 105- 110 Go to original source...
    49. CONN D.B., SWIDERSKI Z. 2004: Fertilization in the parasitic Platyhelminthes. Wiad. Parazytol. 50 (Suppl.): 15
    50. EUZET L., MOKHTAR-MAAMOURI F. 1975: Developpement embryonnaire de trois Cestodes du genre Acanthobothrium (Tetraphyllidea, Onchobothriidae). Ann. Parasitol. Hum. Comp. 50: 675-690 Go to original source... Go to PubMed...
    51. EUZET L., MOKHTAR-MAAMOURI F. 1976: Developpement embryonnaire de deux Phyllobothriidae (Tetraphyllidea, Onchobothriidae). Ann. Parasitol. Hum. Comp. 51: 309-327 Go to original source... Go to PubMed...
    52. FAIRWEATHER I., THREADGOLD L.T. 1981: Hymenolepis nana: the fine structure of the embryonic envelopes. Parasitology 82: 429-443 Go to original source... Go to PubMed...
    53. HARTENSTEIN V., JONES M. 2003: The embryonic development of the bodywall and nervous system of the cestode flatworm Hymenolepis diminuta. Cell Tissue Res. 311: 427-435 Go to original source... Go to PubMed...
    54. JARECKA L. 1961: Morphological adaptations of tapeworm eggs and their importance in the life cycles. Acta Parasitol. Pol. 9: 409-426
    55. JARECKA L. 1975: Ontogeny and evolution of cestodes. Acta Parasitol. Pol. 23: 93-114
    56. JONES M.K. 1988: Formation of the paruterine capsules and embryonic envelopes in Cylindrotaenia hickmani (Jones, 1985) (Cestoda: Nematotaeniidae). Aust. J. Zool. 36: 545-563 Go to original source...
    57. KEARN G.C. 1998: Parasitism and the Platyhelminthes. Chapman and Hall, London, 544 pp Go to original source... Go to PubMed...
    58. KORNEVA Zh.V. 1994: Cell compound and ultrastructural organisation of the coracidium of Triaenophorus nodulosus (Cestoda, Pseudophyllidea). Parazitologiya 28: 276-282. (In Russian.)
    59. KORNEVA Zh.V. 2001: Vitellogenesis and capsule formation during embryogenesis in Triaenophorus nodulosus (Cestoda, Pseudophyllidea, Triaenophoridae). Zool. Zh. 80: 1422-1428. (In Russian.)
    60. KORNEVA Zh.V. 2002: Fine structure of reproductive system in Nippotaenia mogurndae (Cestoda: Nippotaeniidae). Zool. Zh. 81: 266-275. (In Russian.)
    61. KORNEVA Zh.V. 2004: Fine structure and development of Triaenophorus nodulosus (Cestoda) during metamorphosis: a review. Acta Zool. (Stockh.) 85: 59-68 Go to original source...
    62. KORNEVA Zh.V. 2005: Placental type interactions and evolutionary trends of development of uterus in cestodes. J. Evol. Biochem. Physiol. 41: 552-560 Go to original source...
    63. KUCHTA R., SCHOLZ T., BRABEC J., BRAY R.A. 2007: Suppression of the tapeworm order Pseudophyllidea (Platyhelminthes: Eucestoda) and the proposal of two new orders, Bothriocephalidea and Diphyllobothriidea. Int. J. Parasitol. 38: 49- 55 Go to original source... Go to PubMed...
    64. LETHBRIDGE R.C. 1980: The biology of the oncosphere of cyclophyllidean cestodes. Helminthol. Abstr. Ser. A 49: 59-72
    65. LEVRON C., PODDUBNAYA L.G., KUCHTA R., FREEMAN M., SCHOLZ T. 2007: Vitellogenesis and vitelline system in the pseudophyllidean tapeworm Paraechinophallus japonicus: ultrastructural and cytochemical studies. Folia Parasitol. 54: 43- 50 Go to original source... Go to PubMed...
    66. LUMSDEN R.D., OAKS J.A., MUELLER J.F. 1974: Brush border development in the tegument of the tapeworm, Spirometra mansonoides. J. Parasitol. 60: 209-226 Go to original source... Go to PubMed...
    67. MACKIEWICZ J.S. 1968: Vitellogenesis and egg-shell formation in Caryophyllaeus laticeps (Pallas) and Caryophylloides fennica (Schneider) (Cestoidea: Caryophyllidea). Z. Parasitenkd. 30: 18-32 Go to original source... Go to PubMed...
    68. MLOCICKI D., SWIDERSKI Z., CONN D.B., EIRA C., MIQUEL J., BARANOWSKA-KORCZYC A. 2005a: Ultrastructure of oncospheral hook formation in the cestode Mosgovoyia ctenoides (Railliet, 1890) Beveridge, 1978 (Cyclophyllidea, Anoplocephalidae). Acta Parasitol. 50: 124-131. Go to original source...
    69. MLOCICKI D., SWIDERSKI Z., EIRA C., MIQUEL J. 2005b: An ultrastructural study of embryonic envelope formation in the anoplocephalid cestode Mosgovoyia ctenoides (Railliet, 1890) Beveridge, 1978. Parasitol. Res. 95: 243-251 Go to original source... Go to PubMed...
    70. MLOCICKI D., SWIDERSKI Z., MIQUEL J., EIRA C., CONN D.B. 2006: Cellular organization of the oncosphere of Mosgovoyia ctenoides (Cestoda: Anoplocephalidae). J. Parasitol. 92: 953- 961 Go to original source... Go to PubMed...
    71. MOKHTAR-MAAMOURI F. 1976: Etudes ultrastructurales de la gametogenese et des premiers stades du developpement de deux cestodes Tetraphyllidea. These d'etat, Universite des Sciences et Techniques du Languedoc, Montpellier II, France Go to PubMed...
    72. MORSETH D.J. 1965: Ultrastructure of developing taeniid embryophores and associated structures. Exp. Parasitol. 16: 207- 216 Go to original source... Go to PubMed...
    73. NIELAND M.L. 1968: Electron microscope observations on the egg of Taenia taeniaeformis. J. Parasitol. 5: 957-969 Go to original source... Go to PubMed...
    74. OGREN R.E. 1956: Development and morphology of the oncosphere of cestode Mesocestoides corti, a tapeworm of mammals. J. Parasitol. 42: 414-428 Go to original source... Go to PubMed...
    75. PENCE D.B. 1967: The fine structure and histochemistry of the infective eggs of Dipylidium caninum. J. Parasitol. 53: 1041- 1054 Go to original source... Go to PubMed...
    76. PENCE D.B. 1970: Electron microscope and histochemical studies on the eggs of Hymenolepis diminuta. J. Parasitol. 56: 84-97 Go to original source... Go to PubMed...
    77. PODDUBNAYA L.G., MACKIEWICZ J.S., BRUNANSKA M., DEZFULI B.S. 2005a: Fine structure of the male reproductive ducts, vagina and seminal receptacle of Cyathocephalus truncatus (Cestoda: Spathebothriidea), from salmonid fish. Folia Parasitol. 52: 241-250 Go to original source... Go to PubMed...
    78. PODDUBNAYA L.G., MACKIEWICZ J.S., BRUNANSKA M., SCHOLZ T. 2005b: Ultrastructural studies on the reproductive system of progenetic Diplocotyle olrikii (Cestoda, Spathebothriidea): ovarian tissue. Acta Parasitol. 50: 199-207
    79. PODDUBNAYA L.G., MACKIEWICZ J.S., BRUNANSKA M., SCHOLZ T. 2005c: Fine structure of the female reproductive ducts of Cyathocephalus truncatus (Cestoda: Spathebothriidea), from salmonid fish. Folia Parasitol. 52: 323-338 Go to original source... Go to PubMed...
    80. RYBICKA K. 1964a: Gametogenesis and embryonic development of Dipylidium caninum. Exp. Parasitol. 4: 293-313 Go to original source... Go to PubMed...
    81. RYBICKA K. 1964b: Embryonic development of Moniezia expansa (Rud., 1810) (Cyclophyllidea, Anoplocephalidae). Acta Parasitol. 12: 313-325
    82. RYBICKA K. 1966: Embryogenesis in cestodes. Adv. Parasitol. 4: 107-186 Go to original source... Go to PubMed...
    83. RYBICKA K. 1972: Ultrastructure of embryonic envelopes and their differentiation in Hymenolepis diminuta (Cestoda). J. Parasitol. 58: 849-863 Go to original source... Go to PubMed...
    84. RYBICKA K. 1973: Ultrastructure of macromeres in the cleavage of Hymenolepis diminuta (Cestoda). Trans. Am. Microsc. Soc. 92: 241-255 Go to original source... Go to PubMed...
    85. SCHOLZ T. 1991: Studies on the development of the cestode Proteocephalus neglectus La Rue, 1911 (Cestoda: Proteocephalidae) under experimental conditions. Folia Parasitol. 38: 39- 55 Go to PubMed...
    86. SCHOLZ T. 1993: Development of Proteocephalus torulosus in the intermediate host under experimental conditions. J. Helminthol. 67: 316-324 Go to original source... Go to PubMed...
    87. SCHOLZ T. 1999: Life cycles of species of Proteocephalus, parasites of fishes in the Palearctic Region: a review. J. Helminthol. 73: 1-19 Go to original source... Go to PubMed...
    88. SHINN G.L. 1993: Formation of egg capsules by flatworms (phylum Platyhelminthes). Trans. Am. Microsc. Soc. 112: 18-34 Go to original source...
    89. SMYTH J.D., MCMANUS D.P. 1989: The Physiology and Biochemistry of Cestodes. Cambridge University Press, Cambridge UK, 398 pp Go to original source...
    90. SWIDERSKI Z. 1968: Electron-microscopy of embryonic envelope formation by the cestode Catenotaenia pusilla. Exp. Parasitol. 23: 104-113 Go to original source...
    91. SWIDERSKI Z. 1972: La structure fine de l'oncosphere du cestode Catenotaenia pusilla (Goeze, 1782) (Cyclophyllidea, Catenotaeniidae). La Cellule 69: 207-237
    92. SWIDERSKI Z. 1975: Comparative fine structure of cestode embryos. In: Z. Petrovic (Ed.), Proceedings of the 2nd European Multicolloqium of Parasitology, Trogir, Yugoslavia, pp. 265- 273
    93. SWIDERSKI Z. 1981: Reproductive and developmental biology of the cestodes. In: W.H.Clark, Jr. and T.S. Adams (Eds.), Advances in Invertebrate Reproduction. Elsevier/North Holland, Amsterdam, pp. 365-366
    94. SWIDERSKI Z. 1994a: Origin, differentiation and ultrastructure of egg envelopes surrounding the coracidia of Bothriocephalus clavibothrium (Cestoda, Pseudophyllidea). Acta Parasitol. 39: 73-81
    95. SWIDERSKI Z. 1994b: Homology and analogy in egg envelopes surrounding miracidia of Schistosoma mansoni and coracidia of Bothriocephalus clavibothrium. Acta Parasitol. 39: 123- 130
    96. SWIDERSKI Z. 1994c: Ultrastructure of infective eggs of Proteocephalus longicollis (Zeder, 1800) (Cestoda, Proteocephalidea). Proceedings of the 13th International Congress on Electron Microscopy. Vol. 3B: Applications in Biological Sciences. Paris, pp. 1427-1428
    97. SWIDERSKI Z. 1996: Comparative studies on the ultrastructure, homology and analogy of egg envelopes in trematodes and cestodes. Wiad. Parazytol. 42: 81-96. (In Polish.) Go to PubMed...
    98. SWIDERSKI Z. 2007: Postembryonic development of tapeworms - source of novel phylogenetic characters for analysis of cestode evolution: comparative TEM studies. Helminthologia 44: 130-136 Go to original source...
    99. SWIDERSKI Z., BRUNANSKA M., MLOCICKI D., CONN D.B. 2005: Ultrastructure of the oncospheral envelopes in the pseudophyllidean cestode Eubothrium salvelini (Schrank, 1790). Acta Parasitol. 50: 312-318
    100. SWIDERSKI Z., CONN D.B. 1999: Ultrastructural aspects of fertilization in Proteocephalus longicollis, Inermicapsifer madagascariensis, and Mesocestoides lineatus (Platyhelminthes: Cestoda). Acta Parasitol. 44: 19-30
    101. SWIDERSKI Z., CONN D.B. 2000: Egg formation in trematodes and cestodes: comparative ultrastructural studies. Acta Parasitol. 45: 158
    102. SWIDERSKI Z., CONN D.B. 2004: The differentiation and functional ultrastructure of the parenchymatic egg envelopes: Their role in cestode embryogenesis. Wiad. Parazytol. 50 (Suppl.): 116-117
    103. SWIDERSKI Z., CONN D.B., MIQUEL J., MLOCICKI D. 2004a: Fertilization in the cestode Gallegoides arfaai (Mobedi et Ghadirian, 1977) Tenora & Mas-Coma, 1978 (Cyclophyllidea, Anoplocephalidae). Acta Parasitol. 49: 108-115
    104. SWIDERSKI Z., HUGGEL H., SCHOeNENBERGER N. 1970: The role of the vitelline cell in the capsule formation during embryogenesis in Hymenolepis diminuta (Cestoda). Proceedings of the 7th International Congress on Electron Microscopy, Grenoble, pp. 669-670
    105. SWIDERSKI Z., MACKIEWICZ J.S. 2004: Ultrastructural studies on the cellular organisation of the coracidium of the cestode Bothriocephalus clavibothrium Ariola, 1899 (Pseudophyllidea, Bothriocephalidae). Acta Parasitol. 49: 116-139
    106. SWIDERSKI Z., MACKIEWICZ J.S. 2007a: Ovoviviparity in cestodes parasites of fishes. Parassitologia 49 (Suppl. 2): 393.
    107. SWIDERSKI Z., MACKIEWICZ J.S. 2007b: Ultrastructure of polylecithal and oligolecithal eggs of cestodes parasites of fishes: comparative TEM study. Parassitologia 49 (Suppl. 2): 394
    108. SWIDERSKI Z., MIQUEL J., AGOSTINI S., CONN D.B., CHOMICZ L., GRYTNER-ZIECINA B. 2004b: Differentiation and ultrastructure of the oncospheral envelopes of the cestode Joyeuxiella echinorhyncoides (Sonsino, 1889) (Cyclophyllidea, Dipylidiidae). Acta Parasitol. 49: 201-216
    109. SWIDERSKI Z., MOKHTAR M. 1974: The fine structure of the coracidia of Bothriocephalus clavibothrium Ariola, 1899 (Cestoda, Pseudophyllidea). Proceedings of the 3rd International Congress of Parasitology, pp. 412-413
    110. SWIDERSKI Z., NDIAYE P.I., MIQUEL J., TKACH V.V., MARCHAND B., CHOMICZ L., GRYTNER-ZIECINA B., SEREDA M.J. 2001: Ultrastructural study of the embryonic development of the anoplocephalid cestode Anoplocephaloides dentata, an intestinal parasite of Arvicolidae rodents. II. Differentiation and cellular organisation of the oncosphere. Acta Parasitol. 46: 171-185
    111. SWIDERSKI Z., SALAMATIN R.V. 2002: Spasskytaenia platyrhyncha: origin, differentiation and ultrastructure of egg envelopes surrounding invasive oncospheres. Proceedings of the 10th International Congress of Parasitology. Monduzzi Editore, Bologna, Italy, pp. 545-550
    112. SWIDERSKI Z., SALAMATIN R.V., GRYTNER-ZIECINA B., KORNYUSHIN V.V., CONN D.B. 2004c: Electron microscope study on oncospheral envelope morphogenesis in the dilepidid cestode, Dilepis undula (Schrank, 1788). Acta Parasitol. 49: 300-308
    113. SWIDERSKI Z., SUBILIA L. 1978: Electron microscopy of embryonic envelope formation by the cestode Proteocephalus longicollis (Zeder, 1800) (Proteocephalidea). Proceedings of the 9th International Congress of Electron Microscopy, Toronto 2: 444-445 Go to original source...
    114. SWIDERSKI Z., SUBILIA L. 1988: Embryonic development of the cestode Oochoristica agamae Baylis, 1919 (Cyclophyllidea: Anoplocephalidae). In: V. Mangclaviraj (Ed.), Electron Microscopy - 1988: Proceedings of the 6th Asia-Pacific Congress and Workshop on Electron Microscopy, Bangkok, Thailand, pp. 699-700
    115. SWIDERSKI Z., TKACH V.V. 1997a: Ultrastructure of the infective eggs of the hymenolepidid cestode Ditestolepis tripartita (Zarnowski, 1955), a parasite of shrews. Acta Parasitol. 42: 46-54
    116. SWIDERSKI Z., TKACH V.V. 1997b: Differentiation and ultrastructure of oncospheral and uterine envelopes in the nematotaeniid cestode, Nematotaenia dispar (Goeze, 1782). Int. J. Parasitol. 27: 1065-1074 Go to original source... Go to PubMed...
    117. SWIDERSKI Z., TKACH V.V. 2002: Ultrastructure of embryonic development of Inermicapsifer madagascariensis (Cestoda, Anoplocephalidae) with emphasis on the cellular organisation of the infective eggs. Acta Parasitol. 47: 105-120
    118. SWIDERSKI Z., TKACH V.V., VAUCHER C. 2000: Fine structure of the infective eggs of the dilepidid cestode Hepatocestus hepaticus (Baer, 1932), a parasite of shrews. Acta Parasitol. 45: 71-82
    119. SWIDERSKI Z., XYLANDER W.E.R. 2000: Vitellocytes and vitellogenesis in cestodes in relation to embryonic development, egg production and life cycles. Int. J. Parasitol. 30: 805-817 Go to original source... Go to PubMed...
    120. TKACH V.V., SWIDERSKI Z. 1997: Late stages of egg maturation in the cestode Pseudhymenolepis redonica Joyeux et Baer, 1935 (Cyclophyllidea, Hymenolepididae), a parasite of shrews. Acta Parasitol. 42: 97-108
    121. TKACH V.V., SWIDERSKI Z. 1998: Differentiation and ultrastructure of the oncospheral envelopes in the hymenolepidid cestode Staphylocystoides stefanskii (Zarnowski, 1954). Acta Parasitol. 43: 222-231 Go to original source...
    122. UBELAKER J.E. 1980: Structure and ultrastructure of the larvae and metacestodes of Hymenolepis diminuta. In: H.P. Arai (Ed.), Biology of the Tapeworm Hymenolepis diminuta. Academic Press, London, pp. 59-156 Go to original source...
    123. UBELAKER J.E. 1983: The morphology, development and evolution of tapeworm larvae. In: C. Arme and P.W. Pappas (Eds.), Biology of the Eucestoda. Vol. 1. Academic Press, London, pp. 235-296
    124. XYLANDER W.E.R. 1987: Ultrastructural studies on the reproductive system of Gyrocotylidea and Amphilinidea (Cestoda). II. Vitellaria, vitellocyte development and vitelloduct of Gyrocotyle urna. Zoomorphology 107: 293-297 Go to original source...
    125. XYLANDER W.E.R. 1988: Ultrastructural studies on the reproductive system of Gyrocotylidea and Amphilinidea (Cestoda). I. Vitellarium, vitellocyte development and vitelloduct in Amphilina foliacea (Rudolphi, 1819). Parasitol. Res. 74: 363- 370 Go to original source...
    126. YAMANE Y., NAKAGAWA A., MAKINO Y., HIRAI K. 1983: Diphyllobothrium latum: scanning electron microscopic study on the eggshell formation. Jpn. J. Parasitol. 32: 13-25

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