bodies consist of a central leathery-skinned mass, from which four tentacles extend, each with a paddle-like flare at the end. The larger ones are referred to as “bulls,” the smaller “betties”. Betties have a bulbous, translucent sac full of a seemingly fluid, sapphire-blue substance that surrounds the top half of their central form, ribbed in a bilaterally symmetric pattern by leathery membranes of what must be cartilage. The bulls have this mass covered by thick, overlapping folds of their leathery skin, that cover all but the very bottom of their blue sacs. Due to this heavy barding, the betties are much more nimble than the bulls.