In this article we will discuss about the structure of Sea lemons (Doris) with the help of a diagram. 1. Commonly called "sea-slugs" or "sea lemons" and are sluggish marine molluscs. 2. Body some what ovoid in shape convex dorsally and flattened ventrally. 3. External or internal shell absent. 4. Mantle large and anus is situated on postero-dorsal side. 5. [...]
In this article we will discuss about Molluscs:- 1. General Characters of Molluscs 2. Classification of Molluscs 3. Economic Importance. General Characters of Molluscs: 1. Molluscs are essentially aquatic mostly marine, few freshwater and some terrestrial forms. 2. The body is soft, un-segmented, bilaterally symmetrical and consists of head, foot, mantle and visceral mass. 3. The body is clothed with [...]
The following points highlight the twenty representative types of Molluscs. The types are: 1. Chiton 2. Neopilina Galatheae 3. Haliotis 4. Fissurella 5. Patella 6. Aplysia 7. Doris 8. Eolis 9. Limax 10. Dentalium 11. Mytilus 12. Pecten 13.Ostrea 14. Teredo 15. Solen 16. Sepia 17. Loligo 18. Octopus 19. Argonauta 20. Nautilus. Molluscs: Type # 1. Chiton: Chiton (Fig. [...]