Flora and Fauna
- 721
- Codes for Australian Aquatic Biota
- Species coding system for aquatic organisms in the Australian region. Includes standard English names for Australian fishes.
- 723
- Fish
- Information from Wikipedia on the classification, anatomy, respiration and general biology of fish, and other aspects of their life.
- 724
- Fish Classification: The Classes of Fishes
- List of all classes, orders, families, and genera of fish.
- 725
- Fishes of Canada: Annotated Checklist
- Attempts to provide a definitive listing of the scientific, English and French names of all Canadian fishes.
- 726
- Freshwater Fishes of Iran
- A searchable database providing descriptions and illustrations of species found in Iran.
- 727
- Freshwater fishes of Iraq
- A searchable database providing descriptions and illustrations of species found in Iraq.
- 729
- The Cyclostomes: Class Agnatha
- Outlines the characteristics of this class of primitive jawless vertebrates which comprises the hagfishes and lampreys.
- 732
- Scientists Find Lamprey a "Living Fossil"
- Article about the oldest fossil lamprey yet discovered which shows that lampreys have been parasitic for at least 360 million years.
- 733
- Sea Lamprey
- A description of this species, its behavior and breeding habits, and its range in the North Atlantic.
- 734
- Natural History Collections: Mammals
- An introduction to the biology of the placental mammals, the monotremes and the marsupials.
- 737
- Wildlife Africa: Animal Behavior: Mammals
- Notes on the habitat, habits, diet and breeding behavior of some of the larger African mammals.
- 738
- Hagfish
- A description of this species, its behavior and breeding habits, and its range in the colder seas of the Northern Hemisphere.