Question: What Are The Two Classification Of Fish?

Which fish does not have scales on their body?

Fish without scalesJawless fish (lampreys and hagfishes) have smooth skin without scales and without dermal bone.

Most eels are scaleless, though some species are covered with tiny smooth cycloid scales.More items….

What is type of fish?

21 Different Types of Fish (and How They Taste)Flavor Profile #1: Mild. Branzino, tilapia, halibut, cod, sole, perch, walleye, catfish. … Flavor Profile #2: Medium. Yellowtail or kampachi, snapper, swordfish, grouper, trout. … Flavor Profile #3: Full. Salmon, tuna, bluefish, mackerel, sardines, anchovies, herring.

How many types of fish do we have?

The various fish groups account for more than half of vertebrate species. There are almost 28,000 known extant species, of which almost 27,000 are bony fish, with 970 sharks, rays, and chimeras and about 108 hagfish and lampreys.

What are the 5 classes of fish?

Summary. 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.

What are the two classes of fish?

There are two classes of living fish with jaws: the Chondrichthyes (the cartilaginous fish or elasmobranchs) and the Osteichthyes (the bony fish). Both classes of fish have two pairs of lateral fins and a finned tail for propulsion in water.

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 are the 3 classifications of fish?

Fishes are typically divided into three groups: superclass Agnatha (jawless fishes), class Chondrichthyes (cartilaginous fishes), and superclass Osteichthyes (bony fishes).

What is a little fish called?

FingerlingsWhen they have developed to the point where they are capable of feeding themselves, the fish are called fry. When, in addition, they have developed scales and working fins, the transition to a juvenile fish is complete and it is called a fingerling. Fingerlings are typically about the size of fingers.

Is fish a reptile?

A fish is an animal that lives only in the water, whereas a reptile lives in both land and water. A fish is an aquatic vertebrate that is cold blooded or ectothermic. … Some examples of fish are lamprey, sharks, ray fish etc, while lizards, crocodiles, snakes, turtles etc are reptiles.

What are the classification of fish based on habitat?

Habitat based classification of fishes (M-Marine; M,E-Marine, estuarine; E-Estuarine; E-F Estuarine, fresh; M,E,F-Marine, estuarine, fresh)

How old is a fish?

Aging fish is similar to aging a tree by counting the number of growth rings. However, the age of the fish is determined by counting the number of wide growth rings called annuli. In our example, the bluegill is 4 years old.

What is the scientific classification of fish?

For example, fish belong to the kingdom Animalia, the phylum Chordata, and from there are grouped more specifically into several classes, orders, families, and thousands of genus and species.

How are fish classified give examples?

Classifications of Fish and Seafood with ExamplesCartilaginous Fish. (has no bones, cartilage skeleton) … Bivalve. (two shells) … Gastropods. (mollusk having a one-piece shell or no shells, usually move with one muscular ventral foot) … Crustaceans. (having a shell with jointed appendages) … Cephalopods.

What are the 3 types of bony fish?

Trout, goldfish, tuna, clownfish, and catfish are all kinds of bony fishes. They live in both salt and fresh water. Their bodies are covered with scales. Their gills are inside a pocket on the sides of their head.

What is the most primitive type of fish?

Superclass AgnathaThe first group is the Superclass Agnatha. This group is the most primitive of the three groups of fish. The fish belonging to this group have no jaws. Their mouths are like holes in their heads that lack movable parts.