In this article we will discuss about:- 1. Geographical Distribution of Dipnoi 2. Habits and Habitat of Dipnoi 3. Peculiarities 4. Classifications 5. Affinities 6.Phylogeny and Significance. Contents: Geographical Distribution of Dipnoi Habits and Habitat of Dipnoi Peculiarities of Dipnoi Classifications of Dipnoi Affinities of Dipnoi Phylogeny and Significance of Dipnoi 1. Geographical Distribution of […]
Dipnoi: Geographical Distribution and Habitat | Chordata | Zoology
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Fin System of Fishes (With Diagram) | Chordata | Zoology
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In this article we will discuss about the fin system of fishes with the help of suitable diagrams. Fins: Fins are the chief organs of locomotion in fishes. These are either folds of skin or projections from the body surface. The fins are supported by fin-rays. These supporting rays may be bony, cartilaginous, fibrous or […]
Accessory Respiratory Organs of Fishes (With Diagram) | Chordata | Zoology
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Generally adult fishes depended chiefly on pharyngeal gills for aquatic respiration. However, other devices also occur to supplement or replace gill respiration. All such additional respiratory organs, other than gills, are known as accessory respiratory organs. The development of accessory respiratory organs is found mostly in freshwater fishes of tropical region and very rarely in […]