Themisto
Themisto is a genus of hyperiid amphipods, a type of crustacean commonly found in pelagic environments. These tiny, shrimp-like creatures are known for their transparent bodies and large, prominent eyes. They play an important role in marine ecosystems as both predators and prey.
Common Names
Themisto species are often referred to as "hyperiid amphipods" or simply "hyperiids."
Characteristics
Hyperiids are characterized by their transparent, elongated bodies and large, black eyes. They typically range in size from a few millimeters to several centimeters in length. Their bodies are segmented, with a distinct head, thorax, and abdomen. They possess powerful antennae, legs, and strong swimming appendages.
Environments
Themisto species are pelagic organisms, meaning they inhabit the open ocean. They are found in various depths, from the surface to the deep sea. They are often associated with jellyfish, ctenophores, and other gelatinous organisms, which they use for shelter and sometimes even for feeding.
Feeding Habits
Most Themisto species are carnivorous, feeding on a variety of prey, including smaller crustaceans, fish larvae, and even other hyperiids. Some species are known to be opportunistic feeders, scavenging on dead organisms.