In Jain tradition, reptilian or snake-like features are most commonly associated with Nāga-related beings, especially in Vyantara devas and Nāga-kumār devas.

Some Yakṣas, Nāgas, and related devatās are also shown in art with serpent hoods, snake ornaments, or semi-reptilian forms.

So, if you mean devas with reptilian features, the closest Jain category is:

• Nāga-kumār devas
• Some Vyantara devas
• Certain Yakṣa/Yakṣiṇī forms associated with serpents

These are usually iconographic depictions, not the only form they have in all traditions.