Ultrastructure of the proboscidial papillae in some Goniadidae species (Annelida : ``Polychaeta'')

Autor(en): Boeggemann, Markus
Purschke, Guenter 
Stichwörter: Annelida; CONVOLUTA KEFERSTEIN ANNELIDA; GLYCERA; Goniadidae; Marine & Freshwater Biology; Polychaeta; proboscidial papillae; ultrastructure
Erscheinungsdatum: 2006
Herausgeber: CAHIERS DE BIOLOGIE MARINE
Journal: CAHIERS DE BIOLOGIE MARINE
Volumen: 47
Ausgabe: 2
Startseite: 157
Seitenende: 164
Zusammenfassung: 
The ultrastructure of the papillae present at the surface of the proboscis is described in six species of Goniadidae (Glycinde multidens, Goniada hexadentes, Goniada maculata, Goniada vorax, Goniadella bobrezkii and Goniadides falcigera). Scanning electron microscopical observations demonstrated that different types of proboscidial papillae are present. However, the ultrastructural investigations showed that these sclerotized papillae are quite homogeneous and are composed of three or four cells: two secretory supporting cells and one or two multiciliated primary sensory cells, which are presumed to be mechanoreceptors. In these cells, interior skeletal elements, like the large intracellular ciliary rootlets of the glycerids, are absent. The function of the papillae is discussed.
ISSN: 00079723

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