Difference between Platyhelminthes and Echinodermata
Difference between Platyhelminthes and Echinodermata are in tabular form below –
No. |
Platyhelminthes |
Echinodermata |
1. | Platyhelminthes are also known as ‘Flat worms’. Or The Flat worms are also referred as Platyhelminthes. | Echinodermata are also known as ‘Spiny skin’. Or The animals with spiny skin are also referred as Echinodermata. |
2. | Symmetry of Platyhelminthes shows bilateral symmetry. | Symmetry of Echinodermata shows pentaradial symmetry. |
3. | Organisms of Platyhelminthes are Acoelomate. | Organisms of Echinodermata are coelomate. |
4. | Digestive system is incomplete (Gastrovascular cavity and muscular pharynx) in the organisms of Platyhelminthes. | Digestive system is complete (Mouth→esophagus→stomach→Anus) in the organisms of Echinodermata. |
5. | Nervous system of Platyhelminthes includes ganglia, sense organs and double nerve cord. | Nervous system of Echinodermata includes nerve ring, nerve cords and sense organs but no brain. |
6. | Classes of Platyhelminthes includes Turbellaria, Cestoda, Trematoda and Monogenea. | Classes of Echinodermata includes Asteroidea, Echinoidea, and Crinoidea, Ophiuroidea, Holothuroidea and xoncentricycloidea. |
7. | Parasitic flukes, fish parasites, tapeworms and free-living worms are examples of Platyhelminthes. | Brittle star, sea urchins, sea cucumbers, sea lilies, feather stars, sand dollars, sea stars, sea daisies, and feather stars are examples of Echinodermata. |