The mouth of a pink is white, but the gums and tongue are black, as they are in a Chinook. It does not have “teeth” on its tongue. They are a silver fish with larger, oval black spots on their back and entire tail than other species of salmon. There is no silver in the tail. The scales are very small compared to other salmon of the same size. Spawning fish develop a hooked jaw and males have a very large hump on their back. Adult size: 14 to 30 inches.