Gillaysheaia

The Gillaysheaia evolved from gillpedes that migrated too far up Nemo Midnight Sea Mount and ended up in the twilight zone and sunlight zone. There, they adapted to the lower-pressure waters. Their skin has turned gray to blend in with the gray mud. Their legs have grown thicker and more muscular to allow them to walk across the sea floor. They have lost their glowing gills and feelers because they are no longer needed in the light surface waters. Their fins have atrophied because they are no longer used. They have specialized in eating coralkiiros and twinkorals. They use their spiky appendages derived from the tentacles on their head to break pieces off coralkiiros and twinkorals before being moved to the mouth and eaten. They reproduce often because they are relatively easy prey for predators. They lay their eggs into coralkiiros by smashing open one of the coralkiiro's pores and then laying their eggs inside. The eggs don't hatch until the the coralkiiro is fully healed and regained its lost blood-sap. The larvae resemble tiny gillroms, which would be easy prey if they were not inside of the coralkiiro. Inside the coralkiiro, the young gillaysheaias will swim through the nutrient-rich sap-blood, gulping up the large amounts of nutrients found in the 'blood'. The coralkiiro's blood cells cannot attack gillaysheaia larva because the larva are too big. Once they reach 1 cm in length they will develop their spiked tentacles and will eat their way out of the coralkiiro. They will then eat what's left of the coralkiiro's corpse and then swim away in search for small twinkorals to eat until they are 5 cm long. When they grow to 5 cm long, their legs will fully develop and they will be able to crawl across the seafloor and eat larger twinkorals. Only fully-grown gillaysheaias can feed on coralkiiros.