Monodontidae

The cetacean family Monodontidae comprises two unusual whale species, the Narwhal, in which the male has a long tusk, and the white Beluga.

The taxonomy of these aquatic mammals follows:

Taxonomy

ORDER CETACEA
- Suborder Mysticeti
  - Family Eschrichtiidae: Gray Whale
  - Family Balaenopteridae: rorquals
  - Family Balaenidae right whales
  - Family Neobalaenidae: Pygmy Right Whale
- Suborder Odontoceti
  - Family Platanistoidae: river dolphins
  - Family Delphinidae: oceanic dolphins
  - Family Phocoenidae: porpoises
  - Family Monodontidae
    - Beluga, Delphinapterus leucas
    - Narwhal, Monodon monoceros
  - Family Physeteridae: Sperm Whale
  - Family Kogiidae: Pygmy Sperm Whale and Dwarf Sperm Whale
  - Family Ziphiidae: beaked whales