Peltodoris atromaculata is a medium sized nudibranch
endemic to the Mediterranean sea. It feeds on the
desmosponge Petrosia ficiformis. The base colour is
whitish with brown blotches on the body, with small
papillae all over the notum.
Propodial tentacles: Absent Oral tentacles: 2 in number, smooth, white. Rhinophores: White, lamellate (up to 19 lamellae), with
smooth wider base. Gills: White with brown blotches, retractile. Foot: Colourless (ventrally) without any appendages,
laterally white with distinct dark brown blotches at the
base (lateral) of the foot.
Size range: 45-80mm. Common.
Specific characteristics: This species is easy to
distinguish from related species by its colouration,
presence of papillae over the body and its habitat.