Medium sized chromodorid found in shallow waters
roaming on algae, particularly Cystoseira sp. It has also
been found on Posidonia oceanica depositing a yellow
mass of eggs. The base colour is whitish-pink with white
and red blotches on the body. A subterminal yellow band
is normally present.
Propodial tentacles: Absent Oral tentacles: 2 in number, smooth, white, short. Rhinophores: White, lamellate (10 lamellae), with
smooth wider base, retractable. Gills: White, retractile, unipinnate. Foot: Colourless (ventrally) without any appendages,
laterally white with distict dark red blotches, larger than
the notum and protruding from back of notum.
Size range: 20-27mm. Very rare.
Specific characteristics: This species is easy to
distinguish from related species by its colouration and
shape of red spots. A yellow submarginal band is usually
present. Peltodoris atromaculata has dark brown spots
and is found on the sponge Petrosia ficiformis.
Identification and oridinal description by Dr. A.
Perrone from material collected by the author.