Common grass shrimp

Palaemonetes vulgaris, variously known as the common American prawn, common grass shrimp, marsh grass shrimp or marsh shrimp, is a common species of shrimp in the western Atlantic Ocean from Cape Cod Bay to the Gulf of Mexico. Adults grow to less than 5 cm (2.0 in) long, and are transparent except for some orange pigmentation on the eyestalks.