A presumptive ciliary photoreceptor in larval Gyrocotyle urna Grube and Wagener (Cestoda)

The fine structure of a paired lamellate body in the anterior region of the lycophora larva of Gyrocotyle urna is described. Each structure is built up by one specialized cell. Lamellae derive from membranes of about 15 cilia that protrude into an intracellular cavity. The lamellae divide into sever...

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Bibliographic Details
Published in:Zoomorphology 1984, Vol.104 (1), p.21-25
Main Author: XYLANDER, W. E. R
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Invertebrates
Morphology. Histology. Cytology
Nemathelminthia. Plathelmintha
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Summary:The fine structure of a paired lamellate body in the anterior region of the lycophora larva of Gyrocotyle urna is described. Each structure is built up by one specialized cell. Lamellae derive from membranes of about 15 cilia that protrude into an intracellular cavity. The lamellae divide into several flattened branches and are rolled up forming a whorl. The lamellate body is presumed to have photoreceptory function. Comparative deliberations are made for similar structures within several platyhelminths.
ISSN:0720-213X
1432-234X
DOI:10.1007/BF00312167