Traits

These have to have ridges that look like wrapped around thread.

Pointy horns that twist in the top.

Horns that resemble crystal growth. These are not real crystals.

These are big horns that come out of the side of the head.

A large, flat horn on the forehead. It has grow marks.

These horns are exclusive to Lunar Shijis. They can have a round, full moon-like sphere in between them that is glowing. It is not a must though.

These horns are similar to crown horns. Both feature holes. These horns are mostly flat.

Echidna horns start at the base of the skull and grow over the head to the front, where they curl upwards in a loop. The base has spikes on the outside.

These horns are massive and heavy. The grow growth rings.

A horn that can come in various shapes and cuts. It has to be one gem though and located in the middle of the forehead.

Big curled horns that resembles a ram's, just that the curl is above the head.

Horns that resemble finger corals. Can be asymmetrical.

Large horns that grow sideways.

Well... No horns means no horns.

Horns that are on top of the head, shaped like a moth or butterfly wing.

Big, massive horns that grow small ridges.

A horn that looks like a halo and floats above a Shiji's head. It is always round.

Holy horns can only be obtained via one of the quests from the Holy Questline. It is not breedable.


(Note: Normal Shijis can also obtain this horn type, it is unchecked simply for the gambling algorithm!)

A horn shaped in an arc. the form can vary, it can have holes in it and is rather flat.

Macabre horns which grow out of and/or cover the Shiji's eyes, blocking their vision entirely. 
The form of the horns are part of the trait.
Spooky Create A Trait 2024 Runner-Up Submitted by @KeyLime.

Horns that grow in symmetrical shapes.