Depicts all 12 of the magical sea creatures in the Luminous Marine Life series in silhouette. Air bubbles up between them and a tail fin disappears beneath the waves to the right. Surrounded by the country name and the denomination.

Depicts a wide band reminiscent of an old-fashioned porthole decorated with a shell and a starfish. Within the porthole the coin’s surface is black, but when illuminated with ultraviolet light a glowing red and green deep-sea anglerfish appears, with its open mouth full of long pointed teeth and a glowing ‘fishing rod’ on its forehead for catching small fish.

As dark and mysterious as the deep blue sea, a black coin resembling the deep-sea anglerfish is a rare find. These bizarre-looking creatures, with their spherical bodies, large heads, and mouths packed with sharp teeth, inhabit depths below 300 meters in oceans worldwide. Female deep-sea anglerfish, which can be up to 1.2 meters long, are much larger than males, who only grow to a few centimeters. The females are equipped with a 'fishing rod' (illicium) and a luminescent 'lure' (esca) to attract prey. The esca contains complex structures filled with luminescent bacteria, while a light-producing barbel on the hyoid bone uses photogenic granules to emit light, a unique feature in nature.

Ceratioidei, known as deep-sea or pelagic anglerfishes, belong to one of the four suborders in the order Lophiiformes. Found in tropical and temperate seas, these anglerfishes exhibit extreme sexual dimorphism, where the tiny males latch onto larger females with their sharp teeth, sometimes merging with them in a process called parabiosis. Bioluminescence is a common trait, used by these anglerfishes to attract prey in the dark ocean depths.