👉 Harpacticella is a type of bacterium that belongs to the family Pseudomonadaceae and is commonly found in soil, water, and aquatic environments. It has a distinct cell wall made up of cellulose and consists mainly of a single layer of cell walls without any cell walls. Harpacticella can be classified into two main groups: the Prothobacteriaceae (also known as the Pseudomonadaceae) and the Chlamydiae