| Statement I: | Fishes have the maximum proportionate number of species among the vertebrates. | 
| Statement II: | Crustaceans have the second largest proportionate number of species among the invertebrates. | 
| 1. | Statement I is correct but Statement II is incorrect. | 
| 2. | Statement I is incorrect but Statement II is correct. | 
| 3. | Both Statement I and Statement II are correct. | 
| 4. | Both Statement I and Statement II are incorrect | 
| 1. | Mammals | 2. | Amphibians | 
| 3. | Birds | 4. | Reptiles |