Rostrum (anatomy)

In anatomy, the term rostrum (from the Latin meaning beak) is used for a number of phylogenetically unrelated structures in different groups of animals.

Crustacean: the rostrum of the shrimp Macrobrachium rosenbergii is serrated along both edges.

Insect: assassin bug piercing its prey with its rostrum

Cephalopod: the two-part beak of a giant squid

The beak or snout of a vertebrate may also be referred to as the rostrum.

Sailfish, like all billfish, have a rostrum (bill) which is an extension of their upper jawbone

The paddlefish has a rostrum packed with electroreceptors

Sawfish have an electro-sensitive rostrum (saw) which is also used to slash at prey

Hammerheads use their rostrum (hammer) to detect and pin rays buried in sand

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