Which of the following animals is not correctly matched with its pecullar characteristics?

Options

A. Pleurobrachta - Comb plates
B. Aurelia - Jointed appendages
C. Lamulus-Coxal glands
D. Male Carcharhinus - Clasper

Answer

To solve the question regarding which animal is not correctly matched with its peculiar characteristics, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Options**: The question presents several animals along with their peculiar characteristics. We need to examine each pair to determine if they are correctly matched.

2. **Analyze the First Option - Pleurobrachia**:
- Pleurobrachia is known for having comb plates (ctenes).
- This is a correct match as Pleurobrachia belongs to the phylum Ctenophora, which is characterized by these comb plates.

3. **Analyze the Second Option - Aurelia**:
- Aurelia is commonly known as a jellyfish.
- The peculiar characteristic mentioned is "jointed appendages."
- This is incorrect because jellyfish (Aurelia) belong to the phylum Cnidaria and do not have jointed appendages. Jointed appendages are characteristic of arthropods, such as insects and crustaceans.

4. **Analyze the Third Option - Limulus**:
- Limulus is referred to as the king crab.
- It is known for having coxal glands and male claspers, which are indeed related to reproduction.
- This is a correct match as Limulus is an arthropod and exhibits these characteristics.

5. **Conclusion**: Based on the analysis, the animal that is not correctly matched with its peculiar characteristic is **Aurelia**. The characteristic of "jointed appendages" does not apply to Aurelia, making it the incorrect option.

### Final Answer:
The animal that is not correctly matched with its peculiar characteristic is **Aurelia**.

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