Annelida

• Clitellata
• Hirudinea
• Oligochaeta
• Pogonophora
• Polychaeta

• Angleworms and Earthworms@
• Beard Worms@
• Leeches@

• Science: Agriculture: Animals: Worms 

• 1902 Encyclopedia: Annelida  - Provides a description of species and includes a detailed discussion of classes.
• Amazing World of Annelids  - Introduction to over 9,000 species of worms.
• Annelida - The True Worms  - Provides information on external organs of this species. With labeled illustrations.
• Annelida Introduction  - Find information on the fossil record, life history and ecology of Annelida.
• Annelida: Polychaetes, Bristle Worms, Featherduster Worms, Leeches  - Underwater Field Guide to Ross Island and McMurdo Sound, Antarctica project combines images with descriptions of member species.
• Annelida: Worms and Leeches  - Discusses characteristics, life cycle, feeding and habitation of these organisms. With illustrations.
• Bellarmine University Phylum Annelida  - Presents photographs of polychaeta, hirudinea and oligochaeta. With links.
• Biological Diversity: Segmented Worms  - Discusses the anatomical structures of these species. With images.
• Bumblebee.org Invertebrates Annelida Worms and Leeches  - Discusses the distinguishing characteristics of the classes under this phylum. .
• Earthworms (Annelida: Oligochaeta) of the Columbia River Basin Assessment Area  - Results of an ecosystem management project, including abstract, ecology, resident species, management issues, and priorities.
• Illinois Natural History Survey: Center for Annelid Resources  - Features an index of sites for these species. With links and photos.
• Introduction to the Annelida  - Offers a general reference on these species. Includes images and links.
• Invertebrates in the Plankton: Annelida  - Offers information on Polychaetes, including images.
• Kingdom Animalia Phylum Annelida  - Contains a guide to a laboratory course on this animal group. .
• Marine Invertebrates of Hawaii Phylum Annelida - Segmented Worms  - Presents information on annelids found in the state. With photographs.
• MJC Marine Bio Phylum Annelida  - Offers a brief description of this group. With images.
• Oceanlink: Annelida  - Brief overview offers species, appearance, and details on Eudistylia vancouveri.
• Phylum Annelida Worms and Leeches  - Contains an article on habitation, diversity and life styles of species under this group. By Rob Toonen. .
• Pima Community College: Annelida Homepage  - Features a lecture on the species. With pictures.
• Segmented Worms Annelida  - Describes body form and structure of this species. With photos and Norwegian terms.
• Segmented Worms: Annelids  - Features research on members of this phylum by the Australian Museum.
• Shape of Life Phylum Annelida  - Provides a brief description of this type of fauna. With photographs and links.
• Sidwell Friends School: Phylum Annelida  - Covers species, physical hallmarks, evolution, and classes.
• Smithsonian Marine Station at Fort Prince Phylum Annelida  - List species under this animal group. With information on class, order, family and common names.
• Snow College: Annelida Lecture  - Contains descriptions and photographs. In Adobe Photoshop 5.5 Web format.
• Stan Eisen Phylum Annelida  - Presents information on the group including general characteristics, classes, reproduction and gross anatomy comparisons.
• Tree of Life Annelida  - Offers a description of the species. Includes images and diagrams.
• University of Evansville Phylum Annelida  - Features slides that contains descriptions and images of species in this group.
• WormNet: Reconstructing the Early Evolution of Segmented Annelid Worms  - Describes the purpose, goals, and future intentions for this program.
• Zoology 250 Phylogenetic Trees (2005) Phylum Annelida  - Compares the physical traits of several species in this group. With images.