phylum cnidaria
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Phylum Cnidaria(Polyps)
Phylum Cnidaria(Polyps)
Reporters
Alvior, JoeramSegura, Jhomar
Villocino, Kathlynn
Reporters
Alvior, JoeramSegura, Jhomar
Villocino, Kathlynn
The Cnidarians The Cnidarians
• Contains some 10,000 species
• 2 body plans
Medusa Form
Polyp Form
• Contains some 10,000 species
• 2 body plans
Medusa Form
Polyp Form
PolypsPolyps
• 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.
• 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.
http://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Coral_polyp.jpg/250px-Coral_polyp.jpghttp://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Coral_polyp.jpg/250px-Coral_polyp.jpg
AnthozoansAnthozoans
Defining Characteristics:
• Absence (loss) of medusa stage
• Absence of operculum and cnidocil
• Mitochondrial DNA is circular
Defining Characteristics:
• Absence (loss) of medusa stage
• Absence of operculum and cnidocil
• Mitochondrial DNA is circular
• Presence of ciliated groove in the pharyngeal wall leading from the mouth.
• Coelenteron partitioned by distinct sheets of tissues.
• Presence of ciliated groove in the pharyngeal wall leading from the mouth.
• Coelenteron partitioned by distinct sheets of tissues.
http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/
PillarCoral.jpg/200px-PillarCoral.jpghttp://upload.wikimedia.org/wikipedia/commons/thumb/0/06/
PillarCoral.jpg/200px-PillarCoral.jpg
Common Name: Pillar coral Scientific Name: Dendrogyra cylindricu
OctocoralliaOctocorallia
Defining Characteristics:
•Polyps bear 8 tentacles•Are subdivided by 8 complete mesenteries
Defining Characteristics:
•Polyps bear 8 tentacles•Are subdivided by 8 complete mesenteries
http://www.palaeos.com/Invertebrates/Cnidaria/Images/scotinus.jpghttp://www.palaeos.com/Invertebrates/Cnidaria/Images/scotinus.jpg
Scientific Name: Ptilosarcus gurneyi Scientific Name: Ptilosarcus gurneyi
HexacoralliaHexacorallia
Defining Characteristics:
•Possess numerous tentacles
•6 pairs of primary mesenteries
Defining Characteristics:
•Possess numerous tentacles
•6 pairs of primary mesenteries
Scientific Name: Anemonia viridisScientific Name: Anemonia viridis
http://actiniaria.com/img/anemonia_viridis.jpghttp://actiniaria.com/img/anemonia_viridis.jpg
HydrozoaHydrozoa• Greater representation of the polyp
morph on the Life Cycle.
• predatory animals which can be solitary or colonial and which mostly live in saltwater
• Greater representation of the polyp morph on the Life Cycle.
• predatory animals which can be solitary or colonial and which mostly live in saltwater
HydraHydra• 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.
• 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.
Common Name: HydraScientific Name: Hydra Vulgaris
Common Name: HydraScientific Name: Hydra Vulgaris
Scientific Name: Obelia dichotomaScientific 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
ClassificationClassification
Dendrogyra cylindricu
Kingdom: AnimaliaPhylum:CnidariaClass:AnthozoaOrder:ScleractiniaSuborder:FaviinaFamily:MeandrinidaeGenus:DendrogyraSpecies:D. cylindricus
Kingdom: AnimaliaPhylum:CnidariaClass:AnthozoaOrder:ScleractiniaSuborder:FaviinaFamily:MeandrinidaeGenus:DendrogyraSpecies:D. cylindricus
Ptilosarcus gurneyiPtilosarcus gurneyi
Kingdom: Animalia
Subkingdom: Radiata
Phylum: Cnidaria
Class: Anthozoa Subclass: Octocorallia
Order: Pennatulacea Suborder:Subselliflorae
Family: Pennatulidae
Genus: Ptilosarcus
Kingdom: Animalia
Subkingdom: Radiata
Phylum: Cnidaria
Class: Anthozoa Subclass: Octocorallia
Order: Pennatulacea Suborder:Subselliflorae
Family: Pennatulidae
Genus: Ptilosarcus
Anemonia viridisAnemonia viridis
• Phylum: CnidariaClass: AnthozoaSubclass: HexacoralliaSuperorder: HexactiniidaOrder: ActiniariaSuborder: Nynantheae (Thenaria : Endomyaria)Family: Actiniidae
• Species:: Anemonia viridis
• Phylum: CnidariaClass: AnthozoaSubclass: HexacoralliaSuperorder: HexactiniidaOrder: ActiniariaSuborder: Nynantheae (Thenaria : Endomyaria)Family: Actiniidae
• Species:: Anemonia viridis
Hydra VulgarisHydra Vulgaris
• Kingdom:AnimaliaSubkingdom:EumetazoaPhylum:CnidariaSubphylum:MedusozoaClass:HydrozoaSubclass:LeptolinaeOrder:AnthomedusaeSuborder:CapitataFamily:HydridaeGenus:Hydra
• Kingdom:AnimaliaSubkingdom:EumetazoaPhylum:CnidariaSubphylum:MedusozoaClass:HydrozoaSubclass:LeptolinaeOrder:AnthomedusaeSuborder:CapitataFamily:HydridaeGenus:Hydra
Obelia dichotomaObelia dichotoma
Kingdom:AnimaliaSubkingdom:EumetazoaPhylum:CnidariaSubphylum:MedusozoaClass:HydrozoaSubclass:LeptolinaeOrder:LeptomedusaeSuborder:ProboscidoideaFamily:CampanulariidaeGenus:Obelia
Kingdom:AnimaliaSubkingdom:EumetazoaPhylum:CnidariaSubphylum:MedusozoaClass:HydrozoaSubclass:LeptolinaeOrder:LeptomedusaeSuborder:ProboscidoideaFamily:CampanulariidaeGenus:Obelia
ReferencesReferences
http://en.wikipedia.org/wiki/Polyp/last modified on 27 February 2009, at 00:24http://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
http://en.wikipedia.org/wiki/Polyp/last modified on 27 February 2009, at 00:24http://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
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.
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.
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