Traits

A tadpole tail that never quite fully developed, ending in a small and pointed single-finned tip.

Leeches with this trait are often on the smaller side, and have a more juvenile and playful personality.

A bulky tail with a bunched-fin tip that can spread like a fan.

Most often seen on pampered and spoiled leeches; their frequent feeding allowed for this large and luxurious tail to grow to an impressive size.
Leeches with thinner shrimp tails can use it swim, but when fully fed its enlarged state is so buoyant the leech cannot submerge.