Porifera 

Asconoid

 Stalk like body surrounded by a single layer of choanocytes

[image]

 Porifera

Syconoid

[image]

Tubular bodies, wall are very thick 

[image]

porifera 

Leuconoid 

round, plump sponge 

[image]

Radial Canals

[image]

Goes inside 

Incurrent Canals 

Canals that go outside 

Hydroskeleton 

The pressure of the fluid and action of surrounding fluid keep the structure of the organism 

Polymorphism 

Two or more clearly different phenotypes exist in the same population... they morph. 

Polyp 

Medusa

Hydrozoa 

Hydra

Hydrozoa 

Physalia (portuguese man of war) 

Hydrozoa 

Obelia

(medusa) 

Hydrozoa

Obelia

   (polyp) 

[image]

Anthozoa

Metridium 

  [image]

Scyphozoa

Aurelia 

Cubozoa

Hydra

Nematocysts 

Hydra

Budding 

Hydra

Trans-Section 

Hydra

Aurelia

Planula Larvae 

[image]

Dipylidium

Canium

Tape Worm

Scolex 

Tapeworm

Scolex

hooks 

Gravid

Liver Fluke

Liver Fluke

Fasciola hepatica 

Human Blood Fluke

human blood fluke cercariae

Aurelia

Strobila Stage 

Sea Anemone

Cross- section 

Planaria

Choanocytes

Sponge

Gemmules 

Sponge

Spicules