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Question

In male Octopus, the hectocotylised arm is

A
Right fifth
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B
Right fourth
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C
Right third
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D
Left fifth
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Solution

The correct option is C Right third
Hectocotylised arm is seen in male cephalopods. During breeding season, the right third arm in male octopus modifies as a copulatory organ and is called as hectocotylizsed arm. This change is called as hectocotylization. It helps in copulation. It is specialized to store and transfer spermatophores to the female. The male octopus keeps the spermatophores in a pocket near the mouth of the female. From here, the sperm enters the tubes that carry eggs.
Thus, the correct answer is option D.

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