Canetoda
Canetoda consists of blind ectothermic muscals which detect depth with the help of tapping a crest up-and-down to recieve vibrations. Those vibrations are then processed to be perceived in a monochrome format. The starter species within this order are Oculolophus caecus and Acutognathus fellio.
Description
Canetodes are Anoculophs with a specialized echolocation organ and crest to produce noise. Canetodes lack sexual dimorphism despite having two distinct sexes.