Cartilaginous fish.
So, the correct answer is ‘Cartilaginous fish‘.
What is Heterocercal tail example?
A heterocercal tail is a caudal fin composed of two asymmetrical lobes. Often, such as the case in many sharks, the vertebral column passes through the upper lobe, making it the larger of the two lobes. A heterocercal tail is contrasted with a homocercal tail which has equal lobes.
Which of the following has a Heterocercal tail?
Basal ray-finned fishes possess a heterocercal tail in which the dorsal lobe containing the extension of the vertebral column is longer than the ventral lobe.
Does chondrichthyes have Heterocercal tail?
Chondrichthyes mostly have a heterocercal tail, that is, both the lobes of the tail are not similar in size; the dorsal lobe is often larger than the ventral lobe. Osteichthyes typically have a homocercal fin, in which the tail lobes externally appear symmetrical.
Do chondrichthyes have Heterocercal tail fin?
Chondrichthyes are the cartilageous fishes. They have skeletons made of cartilage rather than bone. One of the important characteristics present in Chondrichthyes is the heterocercal caudal fin, which helps in locomotion.
Why do sharks have a Heterocercal tail?
First, the classical model of locomotion in sharks proposes that the heterocercal tail functions by transmitting posteroventral momentum to the water during steady horizontal swimming, thereby producing an anterodorsal reaction force(Alexander, 1965; Ferry and Lauder, 1996; Lauder, 2000).
Do sharks have Homocercal tails?
However, The fastest swimming sharks (such as makos and porbeagles) tend to have lunate shaped caudal fins (homocercal) consistant with the requirement for maximum thrust. The shape of the porbeagle caudal fin, like the one in this picture is lunate or crescent shaped.
What is an example of Osteichthyes?
Bony fishesLower classifications
What are the 3 types of bony fish?
Living Osteichthyes are divided into three subclasses: Dipnoi, Crossopterygii, and Actinopterygii.
What type of tail are found in Chondrichthyes?
heterocercal
Cartilaginous fish also have thick, fleshy fins, unlike bony fish. The tail of cartilaginous fish is also distinctive: the tail is divided into two lobes, and the vertebrae extend into the upper lobe, which is elongated past the lower half. Such a tail is called heterocercal.
What is the benefit of a Heterocercal tail?
The heterocercal tail is capable of delivering a thrust that can be oriented in a wide range of angles in the vertical plane. The orientation results from a balance of forces acting in the tail.
What type of tail do sharks have?
heterocercal caudal
The majority of sharks have heterocercal caudal (tail) fins. This means that their backbone extends into the (usually longer) upper lobe. The shape of the caudal (tail) fin can help you to understand what kind of lifestyle that shark has.
What is the tail of a shark called?
caudal fins
Shark tail fins, also called the caudal fins, are unique among all fishes. If you look at the top half of the fin, it is noticeably longer than the bottom half. This asymmetrical profile was common in many ancient fishes, but sharks are the only group to maintain the shape over a period of 350 million years.
What are the 5 examples of 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. Atlantic cod.
Is tilapia a bony fish?
Similar to almost every other fish in the water, tilapia naturally has bones. Almost all fish are vertebrates, meaning that they have spines and bones. As a matter of fact, tilapia have hundreds of bones that help the fish swim around whatever body of water they’re in.
What is an example of Chondrichthyes?
Cartilaginous fishesLower classifications
What is Homocercal tail?
Definition of homocercal
1 of a fish tail fin : having the upper and lower lobes approximately symmetrical and the vertebral column ending at or near the middle of the base. 2 : having or relating to a homocercal tail fin.
What is the difference between Heterocercal and Homocercal tail?
A heterocercal tail is a caudal fin composed of two asymmetrical lobes. Often, such as the case in many sharks, the vertebral column passes through the upper lobe, making it the larger of the two lobes. A heterocercal tail is contrasted with a homocercal tail which has equal lobes.
Do sharks have tail flukes?
Four patterns of body form in sharks are recognised: 1) The fast swimming pelagic sharks and the whale sharks have a tail with a high aspect ratio, a conical head, a lateral fluke on the caudal peduncle.
Why are shark and dolphin tails different?
Sharks’ tail fins are vertical and they use them in a side-to-side motion to swim, while dolphins’ tails are horizontal and they use them in an up-and-down motion to swim. Sharks have gills on the side of their body while dolphins have a blowhole on the top of their head.