Question

In which of the following, clitellum is present?

• A. Polychaeta
• B. Oligochaeta
• C. Hirudinea
• D. Both B and C

Answer 1

The correct option is D Both B and C

Clitellum is the non-segmented glandular swelling of the epidermis in earthworms (Oligochaeta) and leeches (Hirudinea). It is found near the head of the earthworm and leeches which secrets the viscous fluid to form a sac or cocoon in which egg are deposited. It is present at 14th, 15th and 16th segment of the body.

So, the correct answer is 'Both B and C'