Which of the following is incorrect match?

Options

A. Physalia-portuguese man of war
B. Meandrina- staghorn coral
C. gorgonia-sea fan
D. Pennatula-sea pen

Explanation

To solve the question of identifying the incorrect match among the given options, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding the Options**:
- The options provided are:
- A) Physalia - Portuguese Man of War
- B) Miandra - Staghorn Coral
- C) Gorgonia - Sea Fan
- D) Penitula - Sea Pen

2. **Analyzing Option A: Physalia - Portuguese Man of War**:
- Physalia is indeed known as the Portuguese Man of War.
- It belongs to the phylum Cnidaria and is classified under the class Hydrozoa.
- **Conclusion**: This match is correct.

3. **Analyzing Option B: Miandra - Staghorn Coral**:
- Miandra (or Meandrina) is commonly known as Brain Coral.
- It belongs to the class Anthozoa.
- The Staghorn Coral is actually known as Acropora cervicornis, which is a different organism.
- **Conclusion**: This match is incorrect.

4. **Analyzing Option C: Gorgonia - Sea Fan**:
- Gorgonia is commonly referred to as Sea Fan.
- It also belongs to the class Anthozoa.
- **Conclusion**: This match is correct.

5. **Analyzing Option D: Penitula - Sea Pen**:
- Penitula is indeed known as Sea Pen.
- It belongs to the class Anthozoa as well.
- **Conclusion**: This match is correct.

6. **Final Conclusion**:
- The only incorrect match among the options is **B) Miandra - Staghorn Coral**. Miandra is known as Brain Coral, not Staghorn Coral.

### Final Answer:
The incorrect match is **B) Miandra - Staghorn Coral**.

---