Dorisiella is a genus of parasitic alveolates belonging to the phylum Apicomplexa.

This species infects the gastrointestinal tract of polychaete worms.

The parasite infects the cells of the gut wall.

Each sporocyst gives rise to 8 sporozoites Malacoceros fuliginosus.

This worm of the family Spionidae was previously known as Scolelepis fuliginosa.