👉 Echinosphaeridium, also known as the "cactus worm," is a type of protozoan commonly found in dry habitats such as deserts and arid regions. It is characterized by its small size (less than 1 mm), long body length (up to 0.2 mm), and short spicules (spines). These spicules are used for locomotion, providing support for the cactus worm's body.
