Naked Fraboo

The naked fraboo split from its ancestor the common fraboo. Without any predators it no longer needed an external shell. Its spends most of its time submerged in the water feeding on whatever is in the muck. They support their weight on their pairs of muscular legs. Their entire body is mostly one big muscle, over there is an internal shell remnant for support outside of the water.

Like its ancestor it has an advanced life cycle which grows from eggs to larva to pupa to adult. The adults produce hundreds of eggs into nutritive sacks in the river. The eggs hatch into larva which live underwater and filter-feed on microbes. Once they eat enough they will turn into an immobile pupa that transforms its aquatic worm-like body into a naked fraboo body. Once they leave their slimy "chrysalis" they will feed on decomposing material in the riparian zone.

Like all bubblehorns the naked fraboo breathe through several pores located along the body. When submerged in the water they extract air from water using intestine-like lungs. They have a fine blood based on iron, giving it a ruddy coloration.