Pufferfish have beak-like front teeth formed from fused ... while others live in salt water near coastal regions. One puffer fish, Tetraodon nigroviridis, is particularly interesting because ...

This refers to large teeth at the front of their jaws, two on top and two on the bottom, that have fused to form a sort of beak ... the Congo potato puffer, Tetraodon miurus, and the Indian pea puffer ...