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| Registros recuperados: 28 | |
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| Moens, J.B.; Martens, E.E.; Schockaert, E.R.. |
| A new species of <i>Umalgillid rhabdocoel</i> is described from echinoids from the Kenyan coast. <i>Syndesmis longicanalis</i> sp.nov. is found in the intestine of both <i>Tripneustes gratilla</i> and <i>Toxopneustes pileolus</i> collected near Mombasa. The most stricking characteristic, which distinguishes the new species from all known species of the <i>Syndesmis-Syndisyrinx</i> group is the very long scelotic bursal canal and the three ventral glandular papillae. A more detailed comparison between the specimens from the two different hosts demonstrates that they belong to the same species although some differences are statistically significant. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1994 |
URL: http://www.vliz.be/imisdocs/publications/217167.pdf |
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| Artois, T.J.; Schockaert, E.R.. |
| The taxonomy of the genus <i>Polycystis</i> Koelliker, 1845 <i>sensu</i> Schockaert & Karling, 1975 is discussed. Character analysis reveals the monophyletic state of the three species groups these authors defined within it. As no synapomorphies for the three groups can be found, the genus is split in three genera: <i>Polycystis</i> Koelliker, 1845, <i>Macrorhynchus</i> Graff, 1882 and <i>Paulodora Marcus</i>, 1948. The systematic position of <i>Macrorhynchus yaganus</i> (Marcus, 1954) Evdonin, 1977 is also discussed, resulting in the erection of the new genus <i>Marcusia</i> gen. n. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phylogenetics; Taxonomy; Eukalyptorhynchia; Plathelminthes; Polycystididae; Polycystis. |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6815 |
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| Schockaert, E.R.; Bedini, C.. |
| The epithelium of the anterior tip of the bodywall, of the proboscis cavity and of the proboscis cone in <i>Polycystis naegelii</i> has been studied with the electron microscope. These epithelia are formed by six syncytial belts separated from each other by cellular limits: one belt belongs to the epidermis, three line the cavity and two cover the cone. The posterior belt of the cavity and those of the cone are of the insunk type bringing about a peculiar relationship between the latter two. Moreover, they are associated with muscular elements under the basal cone belt but above its basement membrane. Nine different kinds of glands have been observed erupting at the surface of the epithelia in the studied area, while six different sorts of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Skin; Ultrastructure; Polycystis naegelii. |
| Ano: 1978 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6984 |
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| Schockaert, E.R.. |
| Possible evolutionary trends within Polycystididae have been indicated by Karling (1956) while studying the male genital organs of seyeral turbellarian groups. For the moment his ideas seem the most valuable basis for establishing an intrafamiliar system of Polycystididae, and have hence been applied formally (Schockaert, 1974). However, it can be demonstrated with several examples that the underlying principles prove to be unsatisfactory when one tries to apply Hennig's methodology:-the subfamily Duplacrorhynchinae Schockaert & Karling, 1970, can be recognized as containing the most plesimorph polycystidids; a synapomorph character that would give us an indication of the monophyly of this taxon is lacking;-the homology of some glandular elements (al!... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Evolution; Taxonomy; Polycystididae; Turbellaria [Flatworms]. |
| Ano: 1977 |
URL: http://www.vliz.be/imisdocs/publications/238823.pdf |
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| Registros recuperados: 28 | |
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