Which of the following incorrect about lchthyophis ?

Options

A. External fertilization
B. Oviparous nature
C. Two pairs of limbs
D. Absence of exoskeleton

Answer

To determine which statement about Ichthyophis is incorrect, we will analyze each of the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Ichthyophis**:
- Ichthyophis is a genus of caecilians, which are limbless amphibians. They are often referred to as "fish snakes" due to their elongated, snake-like appearance.

2. **Analyzing the Options**:
- **Option 1: External Fertilization**
- This statement is correct. Ichthyophis exhibits external fertilization, where the male sperm fertilizes the female eggs outside of her body.

- **Option 2: Oviparous Nature**
- This statement is also correct. Ichthyophis is oviparous, meaning they lay eggs. The image mentioned in the transcript shows Ichthyophis guarding its eggs, confirming this characteristic.

- **Option 3: Two Pairs of Limbs**
- This statement is incorrect. Ichthyophis is limbless, which means it does not possess any limbs at all. This is the key point that makes this option the incorrect one regarding Ichthyophis.

- **Option 4: Absence of Exoskeleton**
- This statement is correct. Ichthyophis does not have an exoskeleton; instead, they have a soft, moist skin typical of amphibians.

3. **Conclusion**:
- The incorrect statement about Ichthyophis is **Option 3: Two pairs of limbs**. Ichthyophis is limbless.

### Final Answer:
The incorrect statement about Ichthyophis is **Option 3: Two pairs of limbs**.