The adult Sacculina is known as Sacculina externa which is a parasite of young decapod crustacean, the crab. Generally the female crab is parasitized by the Sacculina. The parasitic habit has caused much degeneracy of different structures in the adult and looks like a fleshy tumour. The adult looses all the external appendages, the carapace and the segmentation of the [...]
In this article we will discuss about the structure of Sacculina with the help of a diagram. 1. This is a specimen of sacculina—"the sucking root barnacle" an ectoparasite on crab. 2. It is in the form of a flat, fleshy and sac-like structure having only the gonad. It is found attached to the ventral surface of crabs between thorax [...]
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 [...]