The Knysna seahorse is the most endangered seahorse in the world (2). It possesses the characteristic seahorse shape and the body is encased in a series of bony rings (5). This small, delicate creature is a mottled greenish brown colour, sometimes with scattered dark spots (2). The snout is relatively short and the neck arches in a smooth curve without a crown (6). The tail is muscular and is used to grasp a mate during courtship, or as an anchor to the substrate (6).