Tail of a male Six-spine Leatherjacket (Meuschenia freycineti) with seven spines
A Rough Leatherjacket (Scobinichthys granulatus)
A Yellow-finned Leatherjacket (Meuschenia trachylepis) eating a dead jellyfish (Scyphozoa)
A male Six-spine Leatherjacket (Meuschenia freycineti)
The Tetraodontiformes are an order of highly derived ray-finned fish, also called the Plectognathi. Sometimes these are classified as a suborder of the Perciformes. The Tetraodontiformes are represented by 10 families and about 360 species overall; most are marine and dwell in and around tropical coral reefs, but a few species are found in freshwater streams and estuaries. They have no close relatives, and descend from a line of coral-dwelling species that emerged around 40 million...