Which of the following is a true Amphibian ?

Options

A. Testudo
B. Crocodylus
C. Alytes
D. Scoliodon

Answer

To determine which of the given options is a true amphibian, we need to analyze each option based on their biological classification and characteristics.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are Testudio, Crocodiles, Allytus, and Scolodon.

2. **Analyze the First Option - Testudio**:
- Testudio refers to the Greek tortoise.
- Tortoises are reptiles and do not exhibit the characteristics of true amphibians.
- **Conclusion**: Testudio is not a true amphibian.

3. **Analyze the Second Option - Crocodiles**:
- Crocodiles are reptiles that share some similarities with amphibians, but they are classified as reptiles.
- They do not possess the full characteristics of amphibians.
- **Conclusion**: Crocodiles are not true amphibians.

4. **Analyze the Third Option - Allytus**:
- Allytus is a genus of frogs, which are considered true amphibians.
- Frogs exhibit the typical characteristics of amphibians, such as a life cycle that includes both aquatic and terrestrial stages.
- **Conclusion**: Allytus is a true amphibian.

5. **Analyze the Fourth Option - Scolodon**:
- Scolodon refers to a genus of sharks, which are classified as fish.
- Fish are not amphibians and do not share the amphibian characteristics.
- **Conclusion**: Scolodon is not a true amphibian.

6. **Final Answer**: Based on the analysis, the only true amphibian among the options is **Allytus**.