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Coelenterati Cnidaria (=Coelenterata) | |
 | Catalogo / Natura / Vita / Animali / Coelenterati Cnidaria (=Coelenterata) |
| Catalogo / Cultura / Scienza / Biologia / Biologia degli organismi / Zoologia / Zoologia e anatomia comparativa degli invertebrati / Coelenterati Cnidaria (=Coelenterata) |
| Catalogo / Cultura / Scienza / Biologia / Biologia degli organismi / Zoologia / Tassonomia: Animali (Animalia) / Tipi degli animali / Coelenterati Cnidaria (=Coelenterata) |
 | Antozoi [10] |
| Idrozoi [5] | ||
| Cubozoa [2] |
| Meduse acraspedi [6] | ||
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Underwater Field Guide to Ross Island & McMurdo Sound, Antarctica
Underwater Field Guide to Ross Island & McMurdo Sound, Antarctica facilitates underwater or topside field identification from visual characters and is not a taxonomic key. It is a product of a National Science Foundation sponsored underwater photography expedition led by Norbert Wu. [eng] |
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Phylum Cnidaria
The Phylum Cnidaria includes such diverse forms as jellyfish, hydra, sea anemones, and corals. Cnidarians are radially or biradially symmetric, a general type of symmetry believed primitive for eumetazoans. They have achieved the tissue level of organization, in which some similar cells are associated into groups or aggregations called tissues, but true organs do not occur. Cnidarian bodies have two or sometimes three layers. A gastrovascular cavity (coelenteron) has a single exterior opening that serves as both mouth and anus. Often tentacles surround the opening. Some cells are organized into two simple nerve nets, one epidermal and the other gastrodermal, that help coordinate muscular and sensory functions. [eng] |
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Radiata after Conway-Morris, 1993
Phylogeny of Radiata. [eng] |
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Cnidaria
This server is for the use and benefit of the worldwide community of researchers studying all aspects of cnidarian biology. General information on cnidarians, Newsgroups and Newsletters, Materials and Methods, Books and Software, People. [eng] |
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Cnidaria:Azooxanthellate Corals
Neogene Marine Biota of Tropical America. [eng] |
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Cnidaria (Coelenterata)
Tree of Life: Cnidaria. Tree following Werner (1973) and Bridge et al. (1995). [eng] |
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NMITA Zooxanthellate Corals Home Page
Neogene Marine Biota of Tropical America. [eng] |
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Introduction to the Cnidaria
Cnidarians are essentially bag-shaped organisms, with a mouth but no anus, and usually tentacles around the mouth. In cross section, a cnidarian body consists of two cell layers: an ectoderm or outer layer, and an endoderm or inner layer. Between the two there is a layer of jellylike substance called mesogloea, which may be thin or thick. [eng] |
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ICCB - 2001
7th International Conference on Coelenterate Biology (ICCB) Annual European Meeting of the International Society for Reef Studies (ISRS). [eng] |
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Myxozoa
Morphological and molecular phylogenetic analysis of Myxozoa. Hypothesis: Myxozoa are Cnidarians. [eng] |
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