Flutterwyrms
Splitting from their oceanic ancestors, the Flutterwyrms have come to dominate the various streams, rivers, swamps, and lakes all over the continent of Wright. Unlike their kin, the Scoopmaw Flutterworm and Common Flutterworm, this genus can be readily recognized by the evolution of a pair of simple eyes that, in conjunction with their main eye, aid them in the detection of light and making out simple shapes. They also come in a variety of colors, from simple shades of brownish-grey to hide amongst the mosshrooms, to hues of yellow and purple that allow them to hide amongst sandy river bottoms and aquatic forests of purple flora. This vast expansion in color has come about due to the loss of their capacity to perform photosynthesis, which arose from a mutation within their original freshwater pioneering ancestor. The waterways of Wright are incredibly clear due to the presence of the various species of Wright Nautstars which inhabit them. This in turn has led to said waterways being starved of nutrients, as those that do exist tend to be absorbed by better adapted aquatic flora. Because of this, the mutation wound up being propagat as it ultimately did not adversely affect this genus. It continued continued throughout generations, all awhile this genus steadily spread and flourished across Wright.
Like their ancestors, the Flutterwyrms lack true jaws and instead endlessly filter-feed upon smaller organisms. This can include the planktonic larvae of various freshwater Nautstars and even those of other Flutterwyrms, to various small free-floating microflora such as Binucleid Rope Algae and Photomniaquatica. They utilize their specialized cephalic antenna, which resemble and even function somewhat akin to mandibles, to direct especially dense patches of plankton and funnel them into their gaping maws. These "mandibles" can even be used to defend themselves from would-be predators by delivering a very weak pinch, should fleeing or hiding otherwise not work out.
Reproduction is the same as it was in its ancestor, though the resulting larvae that hatch from their minuscule eggs now resemble miniature, translucent versions of their adult forms.