Select the incorrect match w.r.t earthworm.

Options

A. Clitellum - `14^(th`) to `16^(th)` segment
B. Female genital pore - `14^(th`) segment
C. Male genital pore - `18^(th)` segment
D. Pharyngeal nephridia - `7^(th)` and `9^(th)` segment

Answer

To solve the question of selecting the incorrect match with respect to earthworm, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding the Options**: We have four options related to the anatomical features of the earthworm. We need to identify which one is incorrect.

2. **Option A: Clitellum (14 to 16 segment)**:
- The clitellum is a thickened, glandular section of the earthworm's body.
- It is responsible for secreting mucus during reproduction and storing eggs.
- The correct segment range for the clitellum is actually from segment 26 to 33, not 14 to 16.
- **Conclusion**: This option is incorrect.

3. **Option B: Female Genital Pore (14 segment)**:
- The female genital pore is indeed located at segment 14.
- **Conclusion**: This option is correct.

4. **Option C: Male Genital Pore (18 segment)**:
- The male genital pore is located at segment 18.
- **Conclusion**: This option is correct.

5. **Option D: Pharyngeal Nephridia (7th and 9th segment)**:
- Pharyngeal nephridia are excretory structures located in segments 7 and 9.
- **Conclusion**: This option is correct.

### Final Answer:
The incorrect match is **Option A: Clitellum (14 to 16 segment)**.