Yoma

The Yomas are beings that need human flesh and blood to survive. They could shapeshift into a human form that alow them to live within humans. A yoma has strength and speed that goes over humans, and could regenerate and heal their bodies at incredible rates. Non human-tranformed yomas present common characteristics such as cat-like golden eyes, veins coming out from their head and arms and their skin turning brown.

Normal Yoma
This kind of Yoma is the most common of all and perhaps the weaker. All Claymore are able to eliminate this kind. For this reason they are the main source of gold to the Organization. These yoma vary greatly in their appearance as they have been seen with skin ranging from brown to green and in one rare case a dark purple. Their build also vary greatly as well from lean to bulky but always muscular, usually a fairly long torso as well. These yoma as well as their flying and awakened cousins have a common trait as they all have sharp shark like teeth and with a predatory attitude to match.

Flying Yoma
They just differ from the normal Yoma by the fact that they had wings. It is unknown if their strength and speed are different from the normal kind but it is said that they are more challenge to a Claymore that a normal yoma.

Claymores
Main Article: Claymore

Claymores can be considered Yoma considering that they are half human half yoma. They have the speed an strength at superior levels of the normal yoma and the ability to sense the yoki of yoma or other Claymores.

Voracious eater
Main Article: Awakened Being

Officially, the Organization refers another type of Yoma, known as a voracious eater; they tell the public that these are simply long-lived Yoma of extreme power and appetite. In reality, though, these are former Claymores who have lost control, called Awakened Beings within the organization ; when a Claymore loses control of their yoki, their form changes into a massive Yoma-like form, far more powerful than both Claymores and normal Yoma. The appearance of an Awakened Being depends on the Claymore, and because of this is wide variety between them ; whether they are actually considered Yoma or not is unclear, though normally when people use the term they refer only to the weaker ordinary monsters.

Abyssal one
Main Article: Abyssal one

The Abyssal Ones are Awakened Beings that were ranked top among Claymores before they awakened. Their form and abilities are similar to those of lesser Awakened Beings and ordinary yoma, but they are vastly more powerful, strong enough to control an entire quadrant of the world.