Leucothéa

Overview

Leucothea multicornis, often called the warty comb jelly, is a delicate, transparent, and gelatinous marine organism belonging to the phylum Ctenophora. Unlike jellyfish, it lacks stinging cells and instead relies on specialized sticky cells to capture its prey in the water column.

Appearance

This species is characterized by an elongated, oval-shaped body that is typically translucent to milky white. Its most distinctive feature is the presence of numerous small, transparent, finger-like papillae covering its outer surface. It possesses two large, delicate oral lobes that extend from the anterior end and eight rows of ciliated comb plates that diffract light, creating shimmering, iridescent effects as the animal moves. When disturbed, it may exhibit bioluminescence.

Biology & behavior

Leucothea multicornis is a pelagic species that drifts in open water, though it is occasionally found near coastal areas. It is a voracious predator that uses two pairs of tentacles—one of which it trails behind—to trap zooplankton. The animal also uses its oral lobes to create swirling water currents, which help guide prey into its mucus-covered surfaces for collection. These tentacles are highly fragile and can be retracted toward the mouth after feeding. When touched or threatened, the organism can fold its oral lobes compactly, significantly altering its overall shape.