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 which group of animals belongs to Gnathostomata and bears limbs, we can follow these steps:

### Step 1: Understand the Classification
Gnathostomata is a subphylum under the phylum Chordata. It includes jaw-bearing vertebrates. The classification of vertebrates can be divided into two groups: Agnatha (jawless vertebrates) and Gnathostomata (jawed vertebrates).

**Hint:** Remember that Gnathostomata includes animals with jaws, while Agnatha includes jawless animals.

### Step 2: Identify the Key Characteristics
Gnathostomata includes various classes such as fishes, amphibians, reptiles, birds, and mammals. However, not all of these classes bear limbs. Fishes, for example, have fins instead of limbs.

**Hint:** Focus on the distinction between fishes (which have fins) and tetrapods (which have limbs).

### Step 3: Recognize the Tetrapods
Tetrapods are a group within Gnathostomata that possess limbs. This group includes amphibians, reptiles, birds, and mammals.

**Hint:** Tetrapods are characterized by having four limbs.

### Step 4: Analyze the Given Options
We need to evaluate the options provided in the question to determine which group contains animals that all have limbs.

1. **Option A: Amphibians** - They have limbs, but we need to check if all animals listed belong to this group.
2. **Option B: Reptiles** - They also have limbs, but again we need to check the specific animals.
3. **Option C: Birds** - Birds have limbs (modified as wings).
4. **Option D: Mammals** - Mammals have limbs as well.

**Hint:** Look for a combination of animals in the options that all possess limbs.

### Step 5: Evaluate Each Group
- In the amphibian group, if there is a limbless amphibian, it would not qualify.
- In the reptile group, if there is a limbless reptile, it would not qualify.
- In the bird group, all birds have limbs.
- In the mammal group, all mammals have limbs.

**Hint:** Check if any of the groups contain a member that does not have limbs.

### Step 6: Conclusion
After analyzing the options, the correct answer is the group that contains only animals with limbs. Based on the analysis, the group that fits this criterion is **Option C**, which includes Hyla (tree frog), Ceylon (turtle), and Corvus (crow), all of which have limbs.

**Final Answer:** Option C - Hyla, Ceylon, and Corvus.