What are the 3 classes of bony fish?

Living Osteichthyes are divided into three subclasses: Dipnoi, Crossopterygii, and Actinopterygii.

What are the 5 classifications of fish?

There are about 28,000 existing species of fish, and they are placed in five classes: hagfish, lampreys, cartilaginous fish, ray-finned bony fish, and lobe-finned bony fish.

How many classes of bony fish are there?

two classes
The bony fish are divided into two classes: ray-finned fish and lobe-finned fish. The bony fish are characterized by a lung or swim bladder, a cover over the gills, and bones covering the head and pectoral girdles.

What is the name of bony fish?

Osteichthyes
Osteichthyes (/ˌɒstiːˈɪkθi. iːz/), popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue.

What are the 7 classification of fish?

What are the 7 levels of classification for a fish? The 7 levels are kingdom, phylum, class, order, family, genus, and species, where the kingdom is the largest and most general.

What are the 7 classes of fish?

Taxonomy
  • Class Agnatha (jawless fish) Subclass Cyclostomata (hagfish and lampreys) …
  • Class Chondrichthyes (cartilaginous fish) Subclass Elasmobranchii (sharks and rays) …
  • Class Placodermi (armoured fish) †
  • Class Acanthodii (“spiny sharks”, sometimes classified under bony fishes)†
  • Class Osteichthyes (bony fish)

What are the 2 types of bony fish?

The bony fish are divided into two classes: ray-finned fish and lobe-finned fish. The bony fish are characterized by a lung or swim bladder, a cover over the gills, and bones covering the head and pectoral girdles.

What is one example of a bony fish?

Sunfish, bass, catfish, trout, and pike are examples of bony fish, as are the freshwater tropical fish that you see in aquariums. Other species of bony fish include: Tuna.

Which characteristics do bony fish have?

Bony fishes contain four pairs of gills. A protective covering of a bony flap known as the operculum protects the gills. The sarcopterygians, lungfishes and lobe-finned fishes contain lungs. The skin is covered by bony dermal scales known as ganoid, cycloid or ctenoid scales.

What classifies a fish?

Fish are aquatic vertebrate animals that have gills but lack limbs with digits, like fingers or toes. Recall that vertebrates are animals with internal backbones. Most fish are streamlined in their general body form. The word fish is the same whether it is singular or plural—you can talk about one fish or ten fish.

What are the classification of fish based on habitat?

According to habitat, there are three classes of fish: Freshwater Fish. Marine Fish. Migrating Fish.

What are the types of fish?

Fish/Representative species

What are the classification of animals?

Animalia
Animal / Scientific name

What are 5 characteristics of fish?

5 Characteristics That All Fish Have in Common
  • All Fish Are Cold-Blooded. All fish are cold-blooded, which is also called ectothermic. …
  • Water Habitat. Another shared characteristic amongst all fish is that they live in water. …
  • Gills to Breathe. …
  • Swim Bladders. …
  • Fins for Movement.

What are the two major categories of fish?

Scientists classify fish into two major groups: the jawless (Agnatha) fishes and the jawed (Gnathastomata) fishes.

What are the functions of fish?

Summary
  • Fish are aquatic, ectothermic vertebrates.
  • Many structures in fish are adaptations for their aquatic lifestyle. For example, fish have a stream-lined body that reduces water resistance while swimming.
  • Fish have gills for “breathing” oxygen in water and fins for propelling and steering their body through water.