Shrimp

[Becky]

Any one of numerous species of macruran Crustacea belonging
to Crangon and various allied genera, having a slender body and long
legs. Many of them are used as food. The larger kinds are called also
prawns. See Illust. of Decapoda.

[Marquetta]

A small free-swimming crustacean with an elongated body, typically marine and frequently of commercial importance as food.