Traits

 A jaw that deviates from the classic mouth, beaked leeches have faces more akin to a bird or turtle. 

The beak jaw is strengthened with cartilage and comes in both blunt and sharp variants.  Leeches with this trait are often curious and dexterous, using it to open doors and dismantle objects and generally get into all sorts of things, so an enriching environment and extra attention is a necessity for them lest they take your home apart piece by piece. 

Note: It may be accompanied by any type of teeth.