The cells are linked together in a series, joined by tiny hair-like structures called bristles. Each cell possesses a total of 12 to 32 bristles encircling its top and bottom. These bristles are roughly twice the length of the cell’s diameter, and their split tips lay flat against the interconnected chain. Notably, the bristles located at the ends of the chain have distinct characteristics. They curve inward toward the center of the chain, creating an umbrella-like shape. These terminal bristles exhibit a spiral, wavy pattern and remain undivided, unlike the other bristles which split into two parts.