A bioluminescent, translucent blue jellyfish with glowing yellow-green tentacles floats in a dark deep-sea environment.

Original Species: Photoventis abyssalis (“Deep-Sea Light-Vent Swimmer”) This is the baseline species for Phylum Luminofera, about 10-20 cm tall with a translucent, bell-shaped body resembling a small jellyfish adapted for hydrothermal vents. It has a soft, jelly-like texture in pale blue tones, glowing faintly yellow from the central lumino-organ, with 8-12 fringed tentacles dangling from the base. Detailed Appearance Body Shape: Domed bell (top wider, tapering down) with radial symmetry around a central axis; 8-12 soft, wavy rings show partial segmentation for flexibility. Key Features: Prominent glowing sac (lumino-organ) inside the bell for bioluminescence; thin, see-through ectoderm skin embedded with nerve cells; tentacles are long and sticky for grabbing plankton. Color & Texture: Mostly translucent blue with yellow-green glow pulses; no hard parts, just gelatinous hydrostatic support to handle deep-sea pressure. Quick Sketch Reference Use the earlier ASCII art as your guide—bell at top, tentacles at bottom, labels for ectoderm/endoderm/pseudocoelom. Add sparkles around the lumino-organ for that deep-sea magic on your poster! See more