The prepubic bones have a partially expanded fan-like form, and never show the triradiate shape, and are never anchylosed.
Columella straight, with two or three triradiate verticils of horizontal lateral branches, which are inserted in the shell-wall.
Some Teleosteans, like Diodon hystrix, have scales with triradiate roots from which arise long sharp spines directed backwards.
Columella with three or four triradiate verticils, as long as the slender pyramidal horn.
Columella with four to six triradiate verticils, as long as the stout triangular pyramidal horn.
Columella with five or six triradiate verticils of lateral branches.