Checklist of Marine Fishes of Turkey: General taxonomical information on the marine fishes inhabiting Turkish seas: Black Sea, Sea of Marmara, Aegean Sea, and Mediterranean Sea.
Codes for Australian Aquatic Biota: Species coding system for aquatic organisms in the Australian region. Includes standard English names for Australian fishes.
Discover Life - Fish: Checklists, images, and identification guides for world fish.
East Coast Fish-Watch Project: Designed to help people to learn more about South Africa's marine fishes and how to identify them.
Find a Fish: Australian Museum collection of factsheets on fish species. Listed by scientific or common name, or search the database.
Fish Classification: The Classes of Fishes: List of all classes, orders, families, and genera of fish.
Fish FAQ: Fascinating facts about fish from U.S. National Marine Fisheries Service Northeast Fisheries Science Center.
Fish, A Quick Course on Ichthyology: Basic introduction to fish biology, by Odyssey Expeditions Tropical Marine Biology Voyages. Covers taxonomy, anatomy, reproduction, schooling behavior, how fish swim, how fish sense, and thermal strategies.
FishBase: Searchable global database containing information on 25,585 species (110,000 common names), 71,000 synonyms, 28,000 photos, and 21,000 references.
Gray's Reef Fish Guide: An illustrated guide to the fishes of Gray's Reef National Marine Sanctuary off the coast of Georgia, USA.
Hazardous Mediterranean Fish: An illustrated guide by the late Dr. Louis Zammit, M.D.
Key to the Fishes of Puget Sound: Identification key and guide to all families of fishes in Puget Sound (Washington, USA).
Marine Fish Fauna in Hong Kong Waters: The first fish Internet database in Hong Kong.
Native Fish Photo Gallery: Images of fish native to the north-central United States.
Neotropical Fish Image Gallery: Collections of photographs of fish species found in the tropical regions of the Americas.
North American Freshwater Fish: Taxonomic checklist of all the freshwater fish of North America, including some range maps and images.
Orðabók 7: English index to nine-language fish common name dictionary. Find out what a particular fish is called in up to nine other languages. Also includes scientific names.