Remucauda volitos
This descendant of the brackish-dwelling vermislontid Remucauda subsalis is specialized for eating Bulbus semifloatus, avoiding competition with Remucauda subsalis feeding on a different food source. It grows at a somewhat larger size of twenty-five to thirty centimeters (25-30 cm) in length to carry more air which allows it to easily stay afloat without difficulty. Remucauda volitos spends a majority of its life floating at the surface of Zone 10 and eating, leaving only to reproduce. It keeps at least some air in its inflated lungs at all times to decrease its density and keeps its mouth open for continuous transmissions of air in and out.
The back of Remucauda volitos is noticeably darker than the underside. This is not actually for countershading but for another reason as the skin is exposed at the surface. The pigments there are dark to absorb sunlight and to protect the skin from potentially dangerous UV rays. The underside is lighter to conserve energy as it is underwater while Remucauda volitos is feeding and would not be as useful highly pigmented. There are instead stripe-like patterns that absorb some of the sunlight and distribute heat during a different time.
The beak is even more extended now, covering the back of the head like a cap. This time, it is for the same reason as the development of the dark skin; it offers aid in protecting from rays of sunlight. They reflect off of the "beak cap" which protects even more efficiently what would be the head.
Remucauda volitos is mature at eleven (11) weeks of age and will reproduce in eleven (11) week intervals. They will use some of their memory and judgements of depths to find land and will then reproduce there away from the bay, laying only twenty (20) to twenty-five (25) eggs as they are slow feeders and have no predators to worry about after hatching. The parents also no longer stay as close to land thanks to a new behavior they have developed, so laying less eggs also saves them more energy in the long run. . Unlike their relatives, Remucauda volitos does not return to land to hibernate, but instead uses a different method as they find more abundant food if they go away from land and do not end up overcrowding over a smaller source of food. When it gets cold and it is their time to hibernate, they will flop over flat onto their backs, hold their mouths open to keep air circulating, and then become dormant and still, unresponsive to the environment. Water does not accidentally flow into their mouths due to the downward slope of their upper beak, and the water changes its temperature more slowly than the air so they do not die of shock doing this. The stripes of the belly will absorb and distribute what little UV rays the sun emits during hibernation , but they do not need to be as dark as the sun is less potent this time of the year. They use this behavior to also avoid competition with their ancestor Remucauda subsalis for space.