Another common species of sargassum shrimp, Leander tenuicornis (Palaemonidae) can be spotted by its long transparent claws or "chelae". Very similar shrimp are found in near shore habitats all around the world. Using genetic tests we may determine if they are the same species, or two different species that look the same.
Off the coast of Belize, Smithsonian Marine Science Network postdoctoral fellow, Seabird McKeon, studies floating seaweeds and the minuscule animals that call them home. Check out his slide show and blog and be amazed by the vast array of tiny life forms floating in the world adrift.