Question

Which of the following is incorrect for Pheretima?

• A. Genital papillae are present in 17th and 19th segment
• B. Male genital pores are present on 18th segment
• C. Clitellum is present on segments 24,25,26.
• D. Segments of earthworm are called somites

Answer 1

Answer: (C)

Clitellum is present on segments 24,25,26.

Clitellum or cingulum is a prominent circular band of glandular skin found from the 14th to 16th segments. It secretes mucus and albumen which helps in the formation of cocoon, and is used from fertilization of the eggs.