The swim-bladder in fishes and the lungs of tetrapods are closely similar in structure and development. Both these structures are intimately associated with the gut. The lungs of higher vertebrates arise exactly the same way as that of the swim-bladder in fishes. Both develop as outgrowths from the gullet and the glottis occupies exactly the same position. But the exact [...]
The upcoming discussion will update you about the difference between protopterus, lepidosiren and neoceratodus. Difference # Protopterus: 1. Distribution: Tropical Africa. 2. Habitat: Inhabits the river and large lakes. It aestivates when the river becomes completely dried up in summer. 3. Feeding habit: Carnivorous and eats the worms, crustaceans, insects, frogs and many other animals. It also feeds on its [...]
The following poionts highlight the top thirteen types of fish. The types are: 1. Cetorhinus (Family Lamnidae) 2. Pristis (Family Pristidae) 3. Sphyrna (Family Sphyrnidae) 4. Polypterus (Bichir) (Family Polypteridae) 5. Acipenser (Family Acipenseridae) 6. Amia (Family Amiidae) 7. Lepisosteus (Family Lepidosteidae) 8. Exocoetus (Family Exocoetidae) 9. Echeneis (Family Echeneidae) 10. Lophius (Family Lophiidae) and Others. Type # 1. Cetorhinus [...]