Which of the following is a true Amphibian ?

Options

A. (a) Testudo
B. (b) Crocodylus
C. (c) Alytes
D. (d) Scoliodon

Answer

To determine which of the following is a true amphibian, we need to analyze each of the given options: Tetsudo, Crocodiles, Allites, and Scolodon.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are Tetsudo, Crocodiles, Allites, and Scolodon.

2. **Analyze Tetsudo**:
- Tetsudo refers to tortoises.
- Tortoises are reptiles, not amphibians.
- **Conclusion**: Tetsudo is not a true amphibian.

3. **Analyze Crocodiles**:
- Crocodiles are well-known reptiles.
- They primarily live in water but are not classified as amphibians.
- **Conclusion**: Crocodiles are not true amphibians.

4. **Analyze Allites**:
- Allites is commonly known as the midwife toad.
- Toads are classified as amphibians, as they can live both on land and in water.
- **Conclusion**: Allites is a true amphibian.

5. **Analyze Scolodon**:
- Scolodon refers to dogfish, which is a type of shark.
- Sharks belong to the class Chondrichthyes (cartilaginous fish) and are not amphibians.
- **Conclusion**: Scolodon is not a true amphibian.

6. **Final Conclusion**:
- Among the options provided, the only true amphibian is **Allites** (midwife toad).

### Answer:
**Allites** is the true amphibian among the given options.