The upcoming discussion will update you about the differences between Cartilaginous and Bony Fishes. Difference # Cartilaginous Fishes: 1. Cartilaginous fishes are mostly marine. 2. The mouth of cartilaginous fishes is ventral. 3. The external nares are ventral. 4. The scales of cartilaginous fishes are Placoid. 5. In cartilaginous fishes, operculum is absent except chimaera. 6. Caudal fins are heterocercal [...]
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 [...]
The following points highlight the top five varieties of fishes. The varieties are: 1. Shark 2. Rohu 3. Singhi 4. Magur 5. Koi. Variety # 1. Shark (Fig. 137): A Cartilaginous Fish: Quite a different types of sharks are available in the oceans of our country, of which the most common is Scoliodon sp. This shark may attain a size [...]