In this article we will discuss about:- 1. Pedicillariae of Starfish 2. T.S Arm of Starfish 3. L.S Arm of Starfish. Pedicillariae of Starfish: Fig. 141 STAR FISH PEDICILLARIAE JAWS It is the slide of pedicillariae from Starfish and it exhibits following features: (a) These are sensory organs present buried in the body-wall of starfishes and other echinoderms. (b) They [...]
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 the dissection of earthworm. Also learn about: 1. General Anatomy of Earthworm 2. Dissection of Alimentary Canal 3. Dissection of Reproductive System. General Anatomy of Earthworm: For purpose of dissection, generally, fresh animals are narcotized, but preserved animals may also be used in the absence of fresh animals. The narcotized or preserved animals [...]