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Phylum Cnidaria

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biology,invertebrate,zoology,usep

biology,invertebrate,zoology,usep

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  • 1. Phylum Cnidaria (Polyps) Reporters Alvior, Joeram Segura, Jhomar Villocino, Kathlynn
  • 2. The Cnidarians
    • Contains some 10,000 species
    • 2 body plans
    • Medusa Form
    • Polyp Form
  • 3.  
  • 4. Polyps
    • are approximately cylindrical, elongated on the axis of the body.
    • is a sessile form which attaches to the sea floor and often forms large colonies.
  • 5. http://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Coral_polyp.jpg/250px-Coral_polyp.jpg
  • 6. Anthozoans
    • Defining Characteristics:
    • Absence (loss) of medusa stage
    • Absence of operculum and cnidocil
    • Mitochondrial DNA is circular
  • 7.
    • Presence of ciliated groove in the pharyngeal wall leading from the mouth.
    • Coelenteron partitioned by distinct sheets of tissues.
  • 8.  
  • 9. http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/PillarCoral.jpg/200px-PillarCoral.jpg Common Name: Pillar coral Scientific Name: Dendrogyra cylindricu
  • 10. Octocorallia
    • Defining Characteristics:
    • Polyps bear 8 tentacles
    • Are subdivided by 8 complete mesenteries
  • 11. http://www.palaeos.com/Invertebrates/Cnidaria/Images/scotinus.jpg
    • Scientific Name: Ptilosarcus gurneyi
  • 12. Hexacorallia
    • Defining Characteristics:
    • Possess numerous tentacles
    • 6 pairs of primary mesenteries
  • 13.  
  • 14. Scientific Name: Anemonia viridis http://actiniaria.com/img/anemonia_viridis.jpg
  • 15. Hydrozoa
    • Greater representation of the polyp morph on the Life Cycle.
    • predatory animals which can be solitary or colonial and which mostly live in saltwater
  • 16.  
  • 17. Hydra
    • Common freshwater hydras are solitary polyps.
    • It is a cylindrical tube with the aboral end drawn out into a slender stalk, ending in a basal (or pedal) disc for attachment.
  • 18.  
  • 19. Common Name: Hydra Scientific Name: Hydra Vulgaris Common Name: Hydra Scientific Name: Hydra Vulgaris
  • 20. Scientific Name: Obelia dichotoma http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lectures/animal%20diversity/lower%20invertebrates/Obelia_colony_X_40.jpg
  • 21.  
  • 22. Classification
  • 23. Dendrogyra cylindricu
    • Kingdom: Animalia Phylum:Cnidaria Class:Anthozoa Order:Scleractinia Suborder:Faviina Family:Meandrinidae Genus: Dendrogyra Species: D. cylindricus
  • 24. Ptilosarcus gurneyi
    • Kingdom: Animalia
    • Subkingdom: Radiata
    • Phylum: Cnidaria
    • Class: Anthozoa Subclass: Octocorallia
    • Order: Pennatulacea Suborder:Subselliflorae
    • Family: Pennatulidae
    • Genus: Ptilosarcus
  • 25. Anemonia viridis
    • Phylum: Cnidaria Class: Anthozoa Subclass: Hexacorallia Superorder: Hexactiniida Order: Actiniaria Suborder: Nynantheae (Thenaria : Endomyaria) Family: Actiniidae
    • Species: : Anemonia viridis
  • 26. Hydra Vulgaris
    • Kingdom:Animalia Subkingdom:Eumetazoa Phylum:Cnidaria Subphylum:Medusozoa Class:Hydrozoa Subclass:Leptolinae Order:Anthomedusae Suborder:Capitata Family:Hydridae Genus: Hydra
  • 27. Obelia dichotoma
    • Kingdom:Animalia Subkingdom:Eumetazoa Phylum:Cnidaria Subphylum:Medusozoa Class:Hydrozoa Subclass:Leptolinae Order:Leptomedusae Suborder:Proboscidoidea Family:Campanulariidae Genus: Obelia
  • 28. References
    • http://en.wikipedia.org/wiki/Polyp/last modified on 27 February 2009, at 00:24
    • http://taxonomicon.net/
    • http://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Coral_polyp.jpg/250px-Coral_polyp.jpg
    • http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lectures/animal%20diversity/lower%20invertebrates/Obelia_colony_X_40.jpg
    • http://actiniaria.com/img/anemonia_viridis.jpg
    • http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/PillarCoral.jpg/200px-PillarCoral.jpg
  • 29.
    • Humann, P. 1993. Reef coral identification.Florida, Caribbean, Bahamas. Jacksonville, Florida, New World Publications,Inc. Superb color photographs and accurate identifications make this by far the best field guide to corals now available; includes sea grasses and some algae.
    • Karlson, R. H., and L. E. Hurd. 1993. Disturbance, coral reef communities, and changing ecological paradigms. Coral Reefs. 12:117–125. The first article of an entire issue devoted to effects of major disturbances, such as El Niño, hurricanes, and floods .