環節 (Khoân-chat)動物 (tōng-bu̍t) (Annelida,Latin語 (gú) "sè ê khoân" ê ì-sù) 是 (sī)動物界 (kài)內面 (lāi-bīn)的 (ê)1个 (ê)大 (toā)門 (mn̂g) (phylum),成員 (sêng-oân)是形軀 (hêng-khu)分 (pun)節 (chat) (像 (chhiūⁿ)杜混 (tō͘-kún)) 的蟲豸 (thâng-thoā),現大 (hiān-tāi)約略 (iok-lio̍k)有 (ū)15,000種 (chióng)指 (chéng)。怹 (In)大份 (toā-hūn)慣勢 (koàn-sì)澹濕 (tâm-sip)的環境 (khoân-kéng),其中 (kî-tiong)包含 (pau-hâm)踮 (tiàm)佇 (tī)陸地 (lio̍k-tē),汫水 (chiáⁿ-chúi),鹹水 (kiâm-chúi)ni̍h的種類 (chéng-lūi)。怹的新堂 (sin-tn̂g)對 (ùi)1 mm以下 (í-hā)至 (chì)3公笑 (kong-chhiò)以上 (í-siōng)。