Mentomeckelian is specially a characteristic bone of

Options

A. Rane tigrina
B. Aquas
C. Bos indicus
D. Felis domestics

Answer

### Step-by-Step Solution:

1. **Understanding Mentomeckelian**:
- The mentomeckelian is a bone or cartilage that forms the anterior extremity of the lower jaw in certain animals. It is specifically related to the chin and lower jaw area.

2. **Analyzing the Options**:
- The question provides several options to identify which animal possesses the mentomeckelian bone.

3. **Evaluating Each Option**:
- **Option 1: Rana Tigrina**: This is the Indian bullfrog. It is known to have the mentomeckelian bone, making this option correct.
- **Option 2: Aqueous**: This term does not refer to a specific animal but rather to water. Therefore, it cannot have a mentomeckelian bone, making this option incorrect.
- **Option 3: Bos indicus**: This is a type of domestic cattle. While it has a humped back, it does not possess a mentomeckelian bone, making this option incorrect.
- **Option 4: Felis domesticus**: This is the domestic cat. It does not have a mentomeckelian bone, making this option incorrect.

4. **Conclusion**:
- After evaluating all the options, the only animal that has the mentomeckelian bone is **Rana Tigrina**. Therefore, the answer is that the mentomeckelian is specially a characteristic bone of **Rana Tigrina**.