Elongated and cylindrical body when deflated, spherical when inflated, that tapers to a truncate tail. Upper half of the body/back brown/tan, olive-green, or gray. Dark vertical bars mixed with dark spots along the sides of the body Numerous small black spots on upper body. Belly appears yellow/white.Skin scaleless and covered with short and pointed spines. Blunt head with eyes located on the upper portion of its head. Jaws appear beak-like as a result of four fused plates- two on the upper jaw and two on the lower jaw. No pelvic fins