1) Herbivorous 2) Saprozoic 
feeding on decaying material
• (a.) Feeding on carrion.
Sa·proph'a·gous adjective (Zoology) Feeding on carrion. 
[adj] - (of certain animals) nourished on dead or decaying animal matter
saprophagous, saprophage, saprophagy, saprophagic 1. Feeding or living on decaying material or on decomposing matter. 2. Subsisting on decaying organic matter, saprotrophic. 3. Feeding on dead or decaying organic matter; biophagous.
saprozoic adjective (of certain animals) feeding on dead or decaying animal matter
eating decaying organisms