Coeloderes are a clade of maricancer with simple lung-like organs evolved from swim bladders, these make it necessary for the coelodere to get its air for the surface, allowing them to thrive in low-oxygen underwater enviroments, the coeloderes now have a significant advantage, as the sudden regress in phytoplankton population has caused a lower level of oxygen in Typhons seas. Golden sandfin (Guldus bundvingea): The golden sandfin is a coastal maricancer that feeds on smaller creatures, such as limax. The sandfins closely packed fins act as a single fin, meaning they swim similarly to rays. It is a descendant of the shoredancer and is an early coelodere Striped featherduster (Vaskemaskine stribet): The striped featherduster is a coelodere that lives in subtropical and tropical waters. The striped featherdusters disruptive coloration and sandy color helps it go unnoticed by its prey, as it feeds mainly on small benthic organisms. The striped featherduster gets its name from the setae on its mandibles which detect vibration in the water. King featherduster (Torden fjerboerste): The king featherduster is a large pelagic filter feeding relative of the striped featherduster native to the open seas of the east. The king featherduster has four appendages with rows of setae that are used to gather small planktonic organisms which it feeds on. During carbon surges, king featherdusters migrate to the tropics and breed. Their exoskeleton is softer than their ancestors, and is now reminiscant of thick skin, though it gets harder near the dorsal side. Parrotdancer (Pilskadenog goejen): The parrotdancer is a species of coelodere closely related to the shoredancer, it has retained its primitive legs, which are used for both swimming and walking on the sea floor. The parrotdancer has several sharp mandibles used as a beak to catch prey or crush plants or plumes, its red coloration helps it fits in with the surroundings in the plume reefs it inhabits.
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