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Question and Answer

Which of the following is a jawless fish?

(A) Hippocampus
(B) Torpedo
(C) Petromyzon
(D) Mystus

Answer

Answer: C
The hippocampus is the name of marine fishes.
Torpedo is the group of flattened cartilaginous fishes, also called anelectric ray.
Mystus is a genus of small to medium-sized bagrid catfishes.
Petromyzon is the 'sea lamprey', which is parasitic lamprey. It is a 'jawless' fish.
So, the correct answer is option C.
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