Teeth, Tails, and Scales

Canine

For grabbing, piercing, capture

Villiform

More common teeth, mainly for capture, less for chewing

Molariform

Further back (like molars), for grinding

Carniform

Deep sea fishes, like viliform but longer, cone-like

Incisor

Slicing, move like scissors

Fused beaks

Pufferfish, constantly growing

Flattened triangular cutting

Shark teeth. Eating generalists

Pharyngeal

Second jaw/teeth inside esophagus, used for actual chewing

Rounded

Truncate

Emarginate

Forked

Lunate

Heterocercal

Placoid

Ganoid

Cycloid

Ctenoid