Rhopalia (singular: rhopalium) are small sensory structures of scyphozoan and cubozoan jellyfish; in Aurelia they lie in marginal indententions around the bell and are flanked by rhopalial lappets. Senses are the physiological methods of Perception. The senses and their operation classification and theory are overlapping topics studied by a variety of fields Box jellyfish are invertebrates belonging to the class Cubozoa, named for their Cube -shaped medusae. Jellyfish are free-swimming members of the phylum Cnidaria. They have several different basic morphologies that represent several different cnidarian classes including the Jellyfish are free-swimming members of the phylum Cnidaria. They have several different basic morphologies that represent several different cnidarian classes including the Specialized structures to sense light (ocelli) and perceive gravity (statoliths) are usually present. An ocellus (plural ocelli) is a type of Photoreceptor organ in animals Statoliths are a specialized form of Amyloplasts involved in Gravity perception by Plants These specialized amyloplasts are denser than the Cytoplasm They also control the pace of swimming-muscle contraction.
Cubozoan ocelli are the most complex of Cnidarians, and resemble the image-forming eyes of squid, octopuses, and vertebrates. Squid are marine Cephalopods of the order Teuthida, which comprises around 300 species The Vertebrates are members of the Subphylum Vertebrata, Chordates with backbones or spinal columns The grouping sometimes includes
See also
References
- Meglitsch, Paul A (1991). For the album by Brian Eno, see Nerve Net (album. A nerve net is a type of simple Nervous system that is found in members of the phylum 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.
External links
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic