In this article we will discuss about Sacculina:- 1. History of Sacculina 2. Life History of Sacculina 3. Duration of Life Cycle 4. Effects of Parasitism. History of Sacculina: (i) Delage (1884) carried out many researches on Sacculina carcina. (ii) Among others, Smith (1906), Boschema (1931) worked on parasitic cirripeds. (iii) Smith (1910-1911) and Giard (1911- 1913) have shown that [...]
In this article we will discuss about Prawn:- 1. Habit and Habitat of Prawn 2. External Structures of Prawn 3. Locomotion 4. Digestive System 5. Respiratory System 6. Circulatory System 7. Excretory System 8. Physiology of Green Glands 9. Nervous System 10. Reproductive System 11. Breeding and Life History. Contents: Habit and Habitat of Prawn External Structures of Prawn Locomotion [...]
In this article we will discuss about True Crabs:- 1. Habit and Habitat of True Crab 2. External Structures of True Crab 3. Digestive System 4. Circulatory System 5. Respiratory System 6. Nervous System 7. Endocrine System 8. Moulting 9. Reproductive System 10. Life History. Contents: Habit and Habitat of True Crab External Structures of True Crab Digestive System of [...]