Distinguishing Features
Fish of the genus Diodon have;
- two-rooted, moveable spines (actually modified scales) distributed over their bodies.
- beak-like jaws, used to crush their hard-shelled prey (crustaceans and molluscs).
They differ from the swelltoads and burrfishes (genus Cyclichthys and Chilomycterus), which have fixed, rigid spines.
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