Traits

A pair of short curved horns, meant for self defense but not much else.

Devil horns are usually accompanied by other spiked traits.

A single conical horn, most often seen in the middle of the forehead. Textures on this horn are common, including a twisted-looking appearance.

Uni horned wild leeches are territorial; they scratch rocks and trees with their horn to mark the borders of their territory.

Very tightly coiled horns that curl forwards on the head.

They are similar to ram horns, but leeches that sport cinnabun horns tend to be more on the docile side.

 An incomplete arc ending in a sharp upwards point.

This trait is most common in fancy mount class leeches; a common way to accessorize these horns is to put some kind of item between them, for example a golden plate.

A pair of horns that branches out into several points. The horns can resemble any existing antler type. 

It is a trait used for mimicry of prey animals. Leeches with this trait are often so docile that you can find birds perching on them. 

A pair of tall horns with backwards-arched tips.

Chaos horned leeches are prone to headbutting potential threats. Unfortunately for the victim, the horns may hook into the body and fling them forcibly.

A single thick horn originating from the leech's snout. It's mostly used for mimicry but can carry a powerful punch.

Rhino horned leeches usually have a lazy temperament; they dislike hunting.

Two horns that combine as arch in the middle.

It’s considered a regal trait to have, but leeches with this trait are prone to getting objects lodged between their horns.
There's a tale of a hunter following helpless animal cries in the forest, only to find a leech suspended midair with its arc horns stuck on a tree branch. 

A genetic mishap that causes a smaller third horn to grow along the center of the head. 

They can exist as their own short set of three horns, or as an addition to any set of duo head horns, such as impaler. On some occasions, the third horn can grow into another singular horn type, like uni. 

Note: No matter the combination, the listed trait will be Tri horns. Add the horn types in the description if applicable! 

A simple spiked ridge of horns that grow as an extension of the jaw, on either side of the face.

The crown is a regal looking trait, and the leeches that sport them tend to act the part.

Note: This is its own horn trait, and therefore more horns cannot be added onto the leech without the many horns Myth trait. 

Solid and spherical horns.

The orb horns are a trait developed by pet leech breeders specifically to be harmless. In some circles it's become popular to try and develop mimicry patterning on these horns, such as giving the appearance of large eyes. 

 Tall sharp horns with very little curve, designed to stab and maim.

These leeches make proficient hunters, but thankfully they aren't usually aggressive unless hungry. 

Similar in shape to Toro, they curve backwards which instead makes them relatively harmless.

Slick is another popular pick for mount class horns, or on those bred to look especially stylish.

Forward-sweeping horns that curve sharply upwards. 

Leeches with toro horns are easily provoked. They will attack by charging with head lowered, and then swiftly striking upwards to gore and toss their victim. 

An impressive set of horns that curl strongly on either side of the head. 

Most common on mount class leeches, riders tie reins to these horns to steer.

Short horns with a bulb end, used for mimicry.

These cute horns are commonly bred on pets.

Long, twisted horns that are used for mimicry and camouflage.

These horns might have been used to attract mates... But it was just a passing trend.

Cartilage in a jagged-tooth shape, set into a hollow set of ears that can open to reveal another set of ears underneath.

A companion trait to the tailmouth hoodie. The zipper ears can be any shape, but are generally rounder and smaller than the inside ear set. 

Note: The zipper must go the length of the leech's ears from the tip, and cannot cut across them horizontally. 

Long thin tendrils. 

These feelers are incredibly dexterous and are most commonly found on wild class and saltwaters. They enhance the signals feelers already normally pick up, which makes these leeches very potent trackers.

Thin-skinned ears that fold in at the base around an ear canal. 

Notably, the only ear type that functions properly as ears. They pick up sound, therefore leeches that have this trait rely on hearing more than they do on sound vibration.
Popular on pets for their aesthetic and for allowing the leech to actually hear verbal commands.