Shriekers
Shriekers live in small to large pods in shallow freshwater. They are capable of breathing both air and water, but rarely stray far inland. They are not particularly intelligent but have a form of vocal communication. The most distinctive of these is the high-pitched shriek when hunting that they are named for.
One shrieker is not particularly dangerous. They typically stand five feet in height and have needle-sharp teeth and a large mouth. They will not usually attack humans on land. A pod that is hungry may attack a rowing boat or small yacht. Even a lone shrieker may attack a lone swimming human and try to drag them beneath the surface.
They are slow on land, but can swim exceptionally fast. Their blood is slick and if fought on a ship can make the deck treacherous footing.
References
Private Tales - Upriver
"And if everyone would just remain calm then this will all be done with very shortly and I promise with hand on heart..." Rayth actually placed his hand on his heart. The hand that wasn't pointing a sabre at the crew lined up at the base of the mast. "...that no harm will come to anyone...
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