Agnatha
(lampray) ,
Chondrichthyes
(sharks),
Osteichthyes
(salmon)
* Placodermi * Acanthodii * Osteichthyesare said to be three classes of bony fishes.
The three vertebrate classes of fish are: Agnatha (jawless fish without scales, e.g. lampreys and hagfish)Chondrichthyes (sharks and rays, which have skeletons of cartilage rather than bone)Osteichthyes (all the bony fish e.g. tuna, trout, whiting, etc.)
fish represent three of several classes that make up the phylum of vertebrate
skin type
There are seven classes of vertebrates. They are the jawless fish, the cartilaginous fish, the bony fish, the amphibians, the reptiles, the mammals, and the birds. Within each group there are many species.
Who?
Osteichthyes are bony fish. So bass, perche, crappe, and so on.
Fish, Amphibians, Reptiles, Birds, Mammals. Vertebrate means animals with a backbone!
There are five main classes of vertebrates, but one of these classes is divided into three classes, giving a total of seven classes altogether.Mammals (Mammalia)Birds (Aves)Reptiles (Reptilia)Amphibians (Amphibia)Fish - which in turn are subdivided into:Agnatha (jawless fish without scales, e.g. lampreys and hagfish);Chondrichthyes (sharks and rays, which have skeletons of cartilage rather than bone)Osteichthyes (all the bony fish e.g. tuna, trout, whiting, etc.)
The three classes of fish are (scientific name/common name): Agnatha/Jawless or No Jaw Chondrichthyes (chon-dri-ik-thees)/Cartilaginous (cart-e-la-ga-nis) Osteichthyes (os-t-ik-thees)/Bony Pronunciation in parenthesis
swimming
The three classes of fish are (scientific name/common name): Agnatha/Jawless or No Jaw Chondrichthyes (chon-dri-ik-thees)/Cartilaginous (cart-e-la-ga-nis) Osteichthyes (os-t-ik-thees)/Bony Pronunciation in parenthesis