Hydroideilla

Hydroideilla is a fictional genus of aquatic creatures appearing in the science fiction novel "The Last Starship" by Anya Sharma. These beings are described as bioluminescent, gelatinous organisms that inhabit the deep oceans of the exoplanet Xylos. Their physiology is adapted to extreme pressure and low light conditions, featuring a translucent body that allows internal light organs to pulse and shift in color, serving both for communication and to attract prey.

In the narrative, hydroideilla are encountered by the human crew of the starship as they explore the alien ocean. The creatures exhibit a form of collective intelligence, communicating through complex patterns of light and subtle electrical impulses. While not overtly aggressive, their sheer numbers and their ability to manipulate water currents pose a significant challenge to the explorers. Scientists on board the starship study the hydroideilla, attempting to understand their unique bio-luminescence and their role within the Xylosian ecosystem. Their presence is a key element in highlighting the alienness and potential dangers of the planet's environment, contributing to the overall sense of wonder and peril in the story.