In many chromodrorid nudibranchs, they take in distasteful and toxic chemicals emitted from sponges and store them in their repugnatorial glands ( located around the mantle edge ).
2.
Many species also emit various foul-smelling liquid secretions through microscopic holes called ozopores ( the openings of " odoriferous " or " repugnatorial glands " ), along the sides of their bodies as a secondary defence.