Invertebrates
- Animal Diversity WebAnimal Diversity Web (ADW) is an online database of animal natural history, distribution, classification, and conservation biology at the University of Michigan.
- Bug Bytes (Reference Library of Digitized Insect Sounds)An USDA resource
- BugGuideInformation and images on insects and spiders.
- Encyclopedia of LifeThe goal of the Encyclopedia will be to serve as an online reference and database on all 1.9 million species currently known to science and will stay current by capturing information on newly discovered and formally described species.
- Freshwater and Marine Image BankThe University Libraries, Univ. of Washington
- NatureGate - ButterfliesA Finnish site, translated into English
- North American Insects and SpidersA commercial website displaying over 5,000 high-resolution close-up pictures of live, wild insects and spiders with descriptions and natural history.
- Selected Internet Resources -- ZoologyScience Reference Section, Science, Technology, and Business Division, Library of Congress
- Smithsonian National Museum of Natural History. Dept. of EntomologyIncludes an image archive
- Xerces SocietyThe Xerces Society is a nonprofit organization that protects wildlife through the conservation of invertebrates and their habitat.
Missouri Invertebrates
- PERIODICAL VS. ANNUAL CICADASMissouri Dept. of Conservation
- Aquatic invertebrate factsResources from the MO Dept. of Conservation
- Bees of MissouriWashington University in St. Louis, Arts & Sciences, Missouri's Natural Heritage, by H. Gregory, 12/30/2019
- Freshwater MusselsA Missouri Dept. of Conservation resource
- Freshwater MusselsA Missouri Dept. of Conservation resource
- Butterfly and moth factsMO Dept. of Conservation
- Insect, Spider and Kin Facts An OverviewResources from the MO Dept. of Conservation (part of the Missouri Field Guide)
- HydrasA Missouri Dept. of Conservation resource
- Craspedacusta sowerbyi Lankester, 1880 (freshwater jellyfish)An United States Geological Survey resource
- Freshwater JellyfishWebsite of Dr. Terry Peard
- Freshwater JellyFish - Table Rock LakeA YouTube video of a freshwater jellyfish
- Missouri Jellyfish (Freshwater Jellyfish)Originally published in the Missouri Conservationist: Jul 2000,(archived)
- Zooplankton of the Great Lakes: Organism: Craspedacusta sowerbyi "Freshwater Jellyfish"Describes Craspedacusta sowerbyi, the freshwater jellyfish