Generally, the most common and most seen body type of an Ameiun is the classical one. 

While Archaic and Mikrofys are less seen as they are quite uncommon.

 

Archaic Ameiuns are big and bulky, with a more sharp-edged face. When they have horns they are commonly sharp and big,

while their nails are usually less retractable compared to the normal Classical Ameiun.

Their irises are usually dark-coloured, while their ears appear to be more pointy with a smaller thermo-gland.

Their cheeks appear to be less chubby as their lacrimal glands are smaller and therefore mostly unused.

 

Personality wise an Archaic is prone to be more aggressive, less sociable, and brute.

 

Classical Ameiuns are less bulky but are still quite big for a feral animal. 

Their face, mostly the cheeks might appear more chubby, making their eyes look slightly lifted.

This is thanks to the huge lacrimal glands they have.

Their ears are long, shaped into a point, and their thermo-glands are bigger than the Archaics. 

Classical Ameiuns have very long tails, which is used to travel fast around planets.

 

Personality wise a Classical Ameiun is docile, smart, emphatic and quite sociable. They are wanderers at heart.

 

Mikrofys are the last evolutional stage of an Ameiun. Petite in size and quite light-weighted.

They have a huge rounded face, with huge eyes, while the rest is proportionally small. 

Magic wise, the things that they inherit from the others, are the ability to travel fast, flight/levitation, and healing tears.

 

Personality wise a Mikrofys is easily-attached, cuddly, sociable, and emphatic.