Superclass Agnatha contains only two Classes of animals, both of which come under the general term of fish. Superclass Gnathostomata contains six Classes of animals, two of which are also included in the general term of fish.
Class Myxini & Cephalaspidomorphi.
| Order | Family | Common Names |
|---|---|---|
| Myxiniformes | Myxinidae | Hagfish |
What is the order of fish?
Fishes are typically divided into three groups: superclass Agnatha (jawless fishes), class Chondrichthyes (cartilaginous fishes), and superclass Osteichthyes (bony fishes).
- Order Esociformes (pikes and pickerels)
- Order Osmeriformes (argentines and smelts)
- Order Salmoniformes (salmons, trouts, and allies)
Which species do fish belong to?
fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes.
What are the 4 classes of fish?
Fish form the largest group of vertebrates. There are Four Classes of fish that we lump together though they are only distantly related to each other. The four groups of fishes are: Jawless Fishes (2 classes), Cartilaginous Fishes, and Bony Fishes. Jawless fish have round mouths.
What are the 5 classes of fish?
Classification of Fish. There are about 28,000 existing species of fish, and they are placed in five different classes. The classes are commonly referred to as hagfish, lampreys, cartilaginous fish, ray-finned fish, and lobe-finned fish (see the table in the previous lesson).
Is fish a category?
Fishes are a group of animals that are completely aquatic vertebrates that have gills, scales, swim bladders to float, most produce eggs, and are ectothermic.
What are the three classes of fishes?
Scientists group fish into three main types. They are divided into these groups because of the structure of their mouths and the types of skeletons they have. There are jawless fishes, cartilaginous (cart uhl AJ uh nuhs) fishes, and bony fishes. All three types are “cold-blooded,” or ectotherms.
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.
- 5 Basic Needs of an Animal.
What are the parts of fish?
Internal Fish Anatomy
- Spine. The primary structural framework, upon which the fish’s body is built, connects to the skull at the front of the fish and to the tail at the rear.
- Spinal cord.
- Brain.
- Lateral line.
- Swim (or air) bladder.
- Gills.
- Kidney.
- Stomach and intestines.
How is seafood classified?
Seafood comprises all bony fishes and the more primitive sharks, skates, rays, sawfish, sturgeons, and lampreys; crustaceans such as lobsters, crabs, shrimps, prawns, and crayfish; mollusks, including clams, oysters, cockles, mussels, periwinkles, whelks, snails, abalones, scallops, and limpets; the cephalopod mollusks
What are the 7 main characteristics of fish?
CHARACTERS
- Fishes are aquatic; cold blooded vertebrates.
- Their body is divisible into head, trunk and tail.
- It has a spindle shaped body.
- The body is covered by scales.
- Respiration is by gills.
- On the head a pair of nostrils are present internal nostril are absent.
- On the head a pair of eyes is present.
Is fish a mammal or reptile?
Fish are not mammals because most of them are not warmblooded, though some sharks and species of tuna are exceptions. They do not have limbs, fingers, toes, fur, or hair, and most of them can’t breathe air, though the lungfish and the snakehead are also exceptions.
What are the two classes of fish?
Scientists use these differences to put fish into three classes, or groups, by looking at their skeletons and the structure of their mouths. These three groups are the Superclass Agnatha, the chondrichthyes, and the osteichthyes.
What are groups of fish called?
A group of fish is called a school or a shoal.
What are 4 characteristics of fish?
Suggest that students memorize the initials “WGFB” to assist them in remembering the four main traits of fish: “Water, Gills, Fins, Backbone.”
What characteristics most commonly distinguish different orders of fish?
With the exception of some primitive species, most fish have common characteristics that include gills, scales, fins and bony skeletons. Some characteristics that differentiate fish include the shape of their heads, where their mouths are located, fin type and location, and average adult size.
What are 10 characteristics of fish?
Top 10 Facts About Fish
- There are over 30,000 species of fish.
- Fish breathe through their gills.
- Most fish don’t have eyelids.
- Fish are cold-blooded!
- Scales help fish to swim.
- Fish are vertebrate animals.
- Fish are speedy!
- Fish talk to each other!
What are features of fish with diagram?
Several are described below and shown in Figure below.
- Fish have gills that allow them to “breathe” oxygen in water.
- Fish have a stream-lined body.
- Most fish have several fins for swimming.
- Fish have a system of muscles for movement.
- Most fish have a swim bladder.
What is the body structure for adaptation of fish?
Fish have adapted to their environment through the evolution of gills, swim bladders and fins. Gills allow fish to absorb oxygen from the water, swim bladders allow fish to maintain an appropriate level of buoyancy and fins allow the fish to move through the water.
Which fish is belong to round type?
A fish classification, including species such as trout, bass, cod, pike, snapper and salmon, which has a backbone along its upper body with a fillet located on both sides. Round fish have an eye located on each side of its head.
How do you process fish?
Fish processing generally involves the following steps:
- Sorting fish by size and species.
- Loading fish into a machine to remove heads.
- Moving fish to a cleaning machine to remove tails, scales and entrails.
- Removing fins.
- Washing thoroughly.
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