Paludicella articulata

Paludicella articulata is a species of freshwater moss animal in the family Paludicellidae. It is found in Europe, Asia, and North and South America.

Description
Colonies can grow to a maximum diameter of 10 cm. They have chitin shine that is similar to the beetles shield. The color is brown. Their life cycle is usually a few months. They breed in spring, at which time the temperature is above 10 C, and die in October, when the temperature drops to about 9 C.

Habitat
The species live in a colony, which always grow on a place where they are sheltered from silt. In Norway, it lives in lakes up to 1397 m above sea level.