Tag Archives | Osteichthyes

Dipnoi: Geographical Distribution and Habitat | Chordata | Zoology

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: The dipnoans, belonging to [...]

By |2017-07-14T08:37:58+00:00July 14, 2017|Fishes|Comments Off on Dipnoi: Geographical Distribution and Habitat | Chordata | Zoology
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Economic Importance of Fish | Vertebrates | Chordata | Zoology

Fishes form one of the most important group of vertebrates for man, influencing his life in various ways. Millions of human beings suffer due to hunger and malnutrition, and fishes form a rich source of food and provide a means to tide over the nutritional difficulties of man. In addition to serving as an important item of food, fishes provide [...]

By |2017-07-14T08:37:58+00:00July 14, 2017|Fishes|Comments Off on Economic Importance of Fish | Vertebrates | Chordata | Zoology
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Scales of Fishes (With Diagram) | Vertebrates | Chordata | Zoology

In many vertebrates, the exoskeletal covering of body is made of two types of scales- epidermal and dermal. Epidermal scales are cornified derivatives of the Malpighian layer of epidermis. They are well developed in terrestrial vertebrates such as reptiles, birds and mammals. Dermal scales are mesenchymal in origin and especially developed in the fishes. They are small, thin, cornified, calcareous [...]

By |2017-07-14T08:37:57+00:00July 14, 2017|Fishes|Comments Off on Scales of Fishes (With Diagram) | Vertebrates | Chordata | Zoology
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