Question

Which one has a heterocercal tail?

• A. Dipnoi
• B. Bony fish
• C. Cartilaginous fish
• D. All of the above

Answer 1

The correct option is C Cartilaginous fish

Heterocercal tail is a tail in which the tail fin or the caudal fin is divided in two lobes of different sizes.

A. Dipnoi is the group of lungfishes which are bony fishes. These have homocercal tail in which caudal in is divided into similar lobes.

B. Bony fishes have bony endoskeleton. These have homocercal tail.

C. Cartilaginous fishes have cartilaginous endoskeleton. These have heterocercal tail.

So, the correct answer is 'Cartilaginous fish'.