ULTRASTRUCTURE DES STATOCYSTES CHEZ SCROBICULARIA PLANA ET TELLINA TENUIS (MOLLUSQUES LAMELLIBRANCHES TELLINACEA) |
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Authors: | FRENKIEL LILIANE; MOUEZA MARCEL |
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Institution: |
* Institut de Biologie, Université des Sciences et Techniques d'Alger Bab Ezzouar, B.P.9 Dar el Beida, Alger, Algérie; and
** Institut National Agrouounique, El Harrach Alger Algerie |
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Abstract: | The statocysts of Scrobicularia plana and Tellina tenuis arecomposed of 8 sensory hair-cells separated by giant cells characterizedby a fibrous cytoskeleton. The sensory cells bear few ciliaespecially in S. plana. These cilia are responsible both forrotation of the statolith and for the transduction of stimuli.Their basal bodies bear a side rootlet facing a basal foot anda crown composed of 9 spokes. Such statocysts seem to receiveonly multidirectional stimuli and to allow a less diversifiedbehaviour than the statocysts of Pecten. (Received 16 September 1980; |
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