Largest erythrocytes in vertebrates measuring about `80 mu m` in diameter are found in :

Options

A. Python
B. Loxodonta
C. Cat
D. Amphiuma

Answer

To determine which vertebrate has the largest erythrocytes measuring about 80 micrometers in diameter, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify the vertebrate that has the largest red blood cells (erythrocytes) measuring about 80 micrometers in diameter.

2. **Evaluate the Options**:
- **Option 1: Python**: This is a snake, which belongs to the class Reptilia. Reptiles generally have smaller, nucleated red blood cells, so this option is likely incorrect.
- **Option 2: Loxodonta (Elephant)**: Elephants are mammals. Mammals typically have smaller, denucleated red blood cells. Therefore, this option is also incorrect.
- **Option 3: Cat**: Cats are also mammals and, like elephants, have smaller red blood cells that are denucleated. This makes this option incorrect as well.
- **Option 4: Amphiuma**: This is a member of the order Urodela within the class Amphibia. Urodela amphibians are known to have the largest erythrocytes, which are nucleated and can measure up to 80 micrometers in diameter.

3. **Conclusion**: Based on the evaluation of each option, the correct answer is **Amphiuma**, as it is known to have the largest erythrocytes among vertebrates.

### Final Answer:
The largest erythrocytes in vertebrates measuring about 80 micrometers in diameter are found in **Amphiuma**.

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