Rhopalium

Rhopalia (tunggal: rhopalium) adalah struktur sensorik kecil pada Scyphozoa (ubur-ubur) dan Cubozoa (ubur-ubur kotak). Pada Aurelia, rhopalia terletak pada indentasi tepi di sekitar bel dan diapit oleh lipatan rhopalial. Pada umumnya terdapat struktur khusus untuk melihat cahaya (oselus) dan persepsi gravitasi (statolit). Alat sensorik ini juga mengendalikan laju kontraksi otot berenang.
Oselus Cubozoa merupakan yang paling kompleks dari Cnidaria, dan menyerupai mata pembentuk gambar pada cumi-cumi, gurita, dan vertebrata.
Lihat juga
Referensi
- Meglitsch, Paul A (1991). Invertebrate Zoology, Oxford University Press, 86. ISBN 0-19-504900-4.
- Ruppert, Edward E; and Fox, Richard S (1988). Seashore Animals of the Southeast, University of South Carolina Press, 29. ISBN 0-87249-535-3.
Pranala luar
- The Jellyfish homepage - University of New South Wales Diarsipkan 2004-06-12 di Wayback Machine.
- The Tree of Life - Cnidaria Diarsipkan 2007-10-12 di Wayback Machine.
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