Codes for Australian Aquatic Biota
   Species coding system for aquatic organisms in the Australian region. Includes standard English names for Australian fishes.
   http://www.marine.csiro.au/caab/

Discover Life - Fish
   Checklists, images, and identification guides for world fish.
   http://www.discoverlife.org/nh/tx/Vertebrata/Fish/

Find a Fish
   Australian Museum collection of factsheets on fish species. Listed by scientific or common name, or search the database.
   http://www.amonline.net.au/fishes/fishfacts/index.htm

Fish
   Information from Wikipedia on the classification, anatomy, respiration and general biology of fish, and other aspects of their life.
   http://en.wikipedia.org/wiki/Fish

Fish Classification: The Classes of Fishes
   List of all classes, orders, families, and genera of fish.
   http://cichlidresearch.com/fish_html/allfish.html

Fish FAQ
   Fascinating facts about fish from U.S. National Marine Fisheries Service Northeast Fisheries Science Center.
   http://www.nefsc.nmfs.gov/faq/

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.
   http://www.odysseyexpeditions.com/fish.asp

FishBase
   Searchable global database containing information on 25,585 species (110,000 common names), 71,000 synonyms, 28,000 photos, and 21,000 references.
   http://www.fishbase.org/

Fishes of Canada: Annotated Checklist
   Attempts to provide a definitive listing of the scientific, English and French names of all Canadian fishes.
   http://www.briancoad.com/fishes%20of%20canada%20titlepage.htm

Freshwater Fishes of Iran
   A searchable database providing descriptions and illustrations of species found in Iran.
   http://www.briancoad.com/main.asp?page=titlepage.htm

Freshwater fishes of Iraq
   A searchable database providing descriptions and illustrations of species found in Iraq.
   http://www.briancoad.com/main.asp?page=TitlePage_Iraq.htm

Gray's Reef Fish Guide
   An illustrated guide to the fishes of Gray's Reef National Marine Sanctuary off the coast of Georgia, USA.
   http://www.graysreef.nos.noaa.gov/fishguide.html

Hazardous Mediterranean Fish
   An illustrated guide by the late Dr. Louis Zammit, M.D.
   http://www.million1.com/hazardous/

Key to the Fishes of Puget Sound
   Identification key and guide to all families of fishes in Puget Sound (Washington, USA).
   http://www.uwfishcollection.org/FishKey/

Marine Fish Fauna in Hong Kong Waters
   The first fish Internet database in Hong Kong.
   http://www.hk-fish.net/

Native Fish Photo Gallery
   Images of fish native to the north-central United States.
   http://www.nativefish.org/Gallery/

Neotropical Fish Image Gallery
   Collections of photographs of fish species found in the tropical regions of the Americas.
   http://www.biocollections.org/imagegallery/

North American Freshwater Fish
   Images, distribution maps and other data on North American freshwater fish.
   http://www.utexas.edu/tmm/tnhc/fish/index.html

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.
   http://www.hafro.is/ordabok/?op=list&wanted=7

The Cyclostomes: Class Agnatha
   Outlines the characteristics of this class of primitive jawless vertebrates which comprises the hagfishes and lampreys.
   http://www.gma.org/fogm/Agnatha.htm