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.