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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Observations on the ultrastructure of the proboscis epithelia in Polycystis naegelii Kölliker (Turbellaria Eukalyptorhynchia) and some associated structures Schockaert, E.R.; Bedini, C. (1978). Observations on the ultrastructure of the proboscis epithelia in Polycystis naegelii Kölliker (Turbellaria Eukalyptorhynchia) and some associated structures. Acta Zool. Fenn. 154: 175-191 In: Acta Zoologica Fennica. Societas pro Fauna et Flora Fennica: Helsinki. ISSN 0001-7299, meer Ook verschenen in: Karling, T.G.; Meinander, M. (Ed.) (1978). The Alex. Lüther Centennial Symposium on Turbellaria. Acta Zoologica Fennica, 154. Societas pro Fauna et Flora Fennica: Helsinki. , meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 238834 [ download pdf ]

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Trefwoorden

Skin Ultrastructure Polycystis naegellii [WoRMS] Marien/Kust

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Auteurs		Top
Schockaert, E.R., meer Bedini, C.

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Abstract

The epithelium of the anterior tip of the bodywall, of the proboscis cavity and of the proboscis cone in Polycystis naegelii 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 sensorial receptors are associated with them. Knowledge of the proboscis of Polycystididae from lightmicroscopy as well as some earlier electronmicroscopic observations on Turbellaria are commented on and some conclusions for the systematics discussed.

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