saproophagous

...It is also unreasonable to use the word herbivory to mean plant-eating. In addition to this, another classification called saprophagous (carrion-eating, corpse-eating, leaf-eating, dead wood-eating, etc.) is usually used, and in the sea, the classification of microplankton-eating, which is not related to animals or plants, is also important. Herbivorousness is actually seen in various forms such as seed-eating, fruit-eating, folivorous (grass leaves, tree leaves), sap-eating, nectar-eating, and wood-eating, and animal-eating also varies, such as bird-eating (often only this is called animal-eating, or carnivorous), fish-eating, insect-eating (insect-eating), shell-eating, and earthworm-eating. ...

*Some of the terminology that mentions "saprophagous" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…また，草食という言葉で植物食を意味させるのにも無理がある。普通はこれに加えて，もう一つ腐食性saprophagous(腐肉食性，死体食性，落葉食性，枯木食性など)という区分も用いられているし，海中では動物植物にかかわらない微小プランクトン食という区分も重要である。　植物食性は，実際には，種子食性，果実食性，葉食性(草の葉食性，木の葉食性)，樹液食性，花蜜（かみつ）食性，材食性などさまざまな形をとって見られるし，動物食性のほうも，鳥獣食性(しばしばこれだけが動物食性＝肉食性と呼ばれる)，魚食性，昆虫食性(食虫性)，貝食性，ミミズ食性などさまざまである。…

※「saprophagous」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報