Notes:

The Yuan-Ti are a race of Snake people in DnD that exist on a scale of Snakieness.

On the bottom of the scale, you have the Purebloods which are just people with snake eyes and forked tongues.

Then you have the Malisons that are just Lamias and people with snake heads.

These are followed by the Abominations which have no human features and are just humanoid snakes.

Then you have the Anathema, which are either massive piles of snakes fused into one body or an abomination with six heads.