Selachian

The Selachians were the soldiers of the Ockorans. Aliens tended to equate the Ockorans and the Selachians, though the Selachians were specially modified for war.

The Selachians wore specialized battlesuits which gave them the appearance and abilities of a humanoid. Their Ockorans had to have their tails removed and studs implanted in their nervous system. They had plasma weapons attached to their arms, which were built for fear rather than power (though it was still a dangerous weapon). Their helmets were shaped and painted to look like sharks in order to intimidate their enemies. (PDA: The Final Sanction)