Leopard Sea Slug

Overview

The Leopard Sea Slug (Peltodoris atromaculata) is a distinctive nudibranch easily recognized by its creamy white body covered in dark brown or black spots. Primarily found in the Mediterranean Sea, this species is a specialized inhabitant of rocky reefs and coralligenous communities.

Appearance

This sea slug features an oval, somewhat firm body that can reach lengths of up to 12 cm. Its striking, high-contrast pattern is a form of disruptive coloration that helps it blend into its surroundings. It possesses a set of retractable, club-shaped rhinophores on its head and a plume of feather-like gills on its back, both of which are white and can be quickly withdrawn when the animal is threatened.

Feeding

Peltodoris atromaculata is a specialized feeder that relies almost exclusively on the stony sponge Petrosia ficiformis. It uses chemotaxis to locate its prey and may remain on a single sponge for several days, slowly scraping away the surface tissue to feed.

Biology & behavior

As a hermaphrodite, this species possesses both male and female reproductive organs. It is a slow-moving creature often found in shaded areas like caves or on the undersides of rocky ledges. To defend itself, it utilizes a combination of physical and chemical strategies: its mantle is reinforced with calcareous spicules, and its conspicuous coloration serves as an aposematic warning to predators that it is unpalatable.