Cipactlis are reptiles. At first, they resemble a crocodile, but on further inspection you will find out that their front limbs have become flippers, and that they have no hind limbs. Their tail looks like that of a mako shark, and they also have a dorsal fin. At 20 feet long, they are mere midgets compared to other aquatic predators on Thanatos.
Found in the waters around Spine Island, cipactlis inhabit rocky reefs, feeding on fish and invertebrates. They are social, forming schools of over 50 individuals.