Q.Ichthyophis belongs to which Class ?

Ichthyophis is a caecilian, a limbless burrowing amphibian, so it belongs to Class Amphibia.

Ichthyophis has an elongated, snake- or earthworm-like body with no limbs, and a series of ring-like skin folds (annuli) that make it look segmented, like an earthworm. It burrows in moist soil and leads a largely fossorial or semi-aquatic life. Despite its limbless, worm-like appearance, it is not a worm, fish, or reptile: it has moist, glandular skin (not the dry, scaled skin of reptiles), it breathes partly through its skin and lungs (not gills as in fishes), and it lays eggs that hatch into aquatic larvae with gills, …