The basic annelid form consists of multiple segments. Each segment has the same sets of organs and, in most polychaetes, has a pair of parapodia that many species use for locomotion. Septa …

Mar 5, 2025 · Annelid, any member of a phylum of invertebrate animals that are characterized by the possession of a body cavity (or coelom), movable bristles (or setae), and a body divided …

Annelids range in length from less than 1 millimeter to over 3 meters. They never attain the large size of some mollusks. Like mollusks, however, they have a coelom. In fact, the annelid …

Figure \(\PageIndex{1}\): Clitellum: The clitellum is the reproductive structure of an annelid. It creates mucus that aids in sperm transfer and gives rise to a cocoon within which fertilization …

annelid , Any member of a phylum (Annelida) of invertebrate animals that possess a body cavity (coelom), movable bristles (setae), and a body divided into segments by crosswise rings. …

Aug 1, 2024 · Annelids usually range between an inch and about 20 feet in length. However, the largest annelid, the African giant earthworm (Microchaetus rappi), grows up to 22 feet long, …

Oct 2, 2024 · Annelids are characterized by their segmented bodies, which sets them apart from other organisms. The term “annelid” comes from the Latin word “anellus,” meaning “little ring,” …

Mar 5, 2025 · Annelid - Segmentation, Setae, Metamerism: The body of an annelid is often described as a tube within a tube. The body form of polychaetes varies, depending on whether …

Aug 25, 2022 · Types of annelids. When many people think of annelids, they limit themselves to earthworms. But there are many examples of annelid species and we provide some of them …

Aug 3, 2023 · Classification of Phylum Annelida. About 8,700 known species of Annelida are divided into four main classes, primarily on the basis of presence and absence of parapodia, …