The term Platyhelminthes "flatworms" was first proposed by Gaugenbaur (1859) and applied to the animals now included under that heading. The name Platyhelminthes has been derived from the Greek platys = flat + helmins = worms. At first, nemertines and others were also included but later were removed to other groups. The phylum is now restricted to three classes, Turbellaria, [...]
In this article we will discuss about Polystoma Integerrimum:- 1. Habit and Habitat of Polystoma 2. Structure of Polystoma 3. Body Wall 4. Alimentary Canal 5. Excretory System 6. Nervous System 7. Reproductive System 8. Life Cycle. Contents: Habit and Habitat of of Polystoma Integerrimum Structure of of Polystoma Integerrimum Body Wall of Polystoma Integerrimum Alimentary Canal of Polystoma Integerrimum [...]
In this article we will discuss about Dugesia:- 1. Habit and Habitat of Dugesia 2. Structure 3. Body Wall 4. Locomotion 5. Digestive System 6. Respiratoty and Excretory System 7. Nervous System 8. Sense Organs 9. Reproduction 10. Copulation, Fertilisation and Development 11. Regeneration. Contents: Habit and Habitat of Dugesia Tigrina Structure of Dugesia Tigrina Body Wall of Dugesia Tigrina [...]