Limnomedusae
Limnomedusae is an order of cnidarians belonging to the class Hydrozoa. These are small, typically freshwater jellyfish. Unlike most jellyfish, which are marine, limnomedusae are adapted to life in freshwater environments. Their bodies are generally bell-shaped and possess tentacles that hang downwards. They exhibit a typical cnidarian life cycle, which includes a polyp stage and a medusa (jellyfish) stage, though the relative importance and visibility of these stages can vary among species.
The polyp stage is usually sessile and attached to a substrate, while the medusa stage is free-swimming.
Several families are included within the order Limnomedusae, such as the Olindiidae and Microhydrulidae. Some species,