Which is correctly paired?

Options

A. Pristis-Saw fish
B. Trygon-Monitor
C. Ichthyophis-Crow
D. Varanus-String Ray

Answer

To determine which pairing is correct, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Option 1: Pristis - Sawfish
- Option 2: Trigon - Monitor
- Option 3: Ichthyophis - Crow
- Option 4: Varanus - Stingray

2. **Analyze Option 1: Pristis - Sawfish**:
- Pristis is indeed the scientific name for the sawfish, which is a type of cartilaginous fish. The sawfish has a long, flattened snout that resembles a saw, which is where it gets its name. Therefore, this pairing is correct.

3. **Analyze Option 2: Trigon - Monitor**:
- Trigon refers to a group of stingrays. The term "monitor" does not apply here, as monitor lizards belong to a different category. Therefore, this pairing is incorrect.

4. **Analyze Option 3: Ichthyophis - Crow**:
- Ichthyophis is a genus of limbless amphibians, commonly known as caecilians. A crow is a bird and does not belong to the same category as Ichthyophis. Therefore, this pairing is incorrect.

5. **Analyze Option 4: Varanus - Stingray**:
- Varanus refers to monitor lizards, which are reptiles. Stingrays, on the other hand, belong to the class of cartilaginous fishes. Since these are two different groups, this pairing is also incorrect.

### Conclusion:
After analyzing all the options, the only correct pairing is:
- **Option 1: Pristis - Sawfish**

### Final Answer:
The correctly paired option is **Option 1: Pristis - Sawfish**.

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