In this article we will discuss about the classification of osteichthyes. The class Osteichthyes includes a large assemblage of true bony fishes. There are well over 30,000 to 40,000 living species, both freshwater and marine. Some of the freshwater forms are the carp, perch, bass, trout, catfish, sucker, etc., while the marine fishes are the tarpon, meckerel, tuna, sailfish, barracula, [...]
In this article we will discuss about the ganoid fish and its types with the help of suitable diagrams. The actinopterygians (modern living fish) belonging to the superorders Chondrostei and Holostei are known as ganoid fish. They are characterised by having scales covered with an enamel-like ganoin and heterocercal tail fin, i.e., the lower fin-lobe is disproportionately developed and is [...]
The Superorder Teleostei is the largest and the most diverse group including advanced ray-finned bony fishes (Fig. 16.11). Salmo: Commonly called salmon or trout, belongs to the family Salmonidae of the order Clupeiformes. A freshwater and marine fish found in temperate and arctic zones of Northern Hemisphere. It is introduced in Kashmir and Nilgiris. It has a small adipose fin [...]