The given group of animals belong to Gnathostomata and bear limbs are :

Options

A. Myxine , Clarius, Exocoetus
B. Icthyophis, Hippocampus ,Bufo
C. Hyla, Chelone , Corvus,
D. Chelone, Betta, psittacula

Answer

To solve the question regarding the group of animals that belong to Gnathostomata and bear limbs, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Classification**:
- Gnathostomata refers to jaw-bearing organisms, which are part of the subphylum Vertebrata.
- Vertebrates are divided into two main groups: Agnatha (jawless) and Gnathostomata (jawed).

2. **Identify Superclasses**:
- Within Gnathostomata, there are two superclasses:
- **Pisces** (fishes)
- **Tetrapoda** (limb-bearing organisms)

3. **Define Tetrapoda**:
- Tetrapoda includes four classes:
- Amphibia (frogs, toads)
- Reptilia (turtles, lizards)
- Aves (birds)
- Mammalia (mammals)

4. **Evaluate the Given Options**:
- **Option 1**: Myxine (hagfish) - This belongs to Cyclostomata, not Gnathostomata. Incorrect.
- **Option 2**: Ichthyophis (a limbless amphibian) - While it belongs to Amphibia (Tetrapoda), it is limbless. Incorrect.
- **Option 3**: Hyla (tree frog), Cheloni (turtle), Corvus (crow) - All belong to Gnathostomata and are limb-bearing. Correct.
- **Option 4**: Cheloni (turtle), Betta (fighting fish), Sitakilla (parrot) - Betta is a fish (Pisces), not limb-bearing. Incorrect.

5. **Conclusion**:
- The correct answer is **Option 3**: Hyla, Cheloni, and Corvus, as they all belong to Gnathostomata and bear limbs.