I regularly find Lepocinclis oxyuris in the uppermost mud layer of some of my sampling sites. This large species is particularly common in the Simmelried.

In the fresh samples, Lepocinclis oxyuris stands out even at small magnifications due to its size and the characteristic tailpiece. The cylindrical body is also twisted in a clockwise direction. At higher magnification, two large paramylon grains are usually found, which are arranged above and below the nucleus (s. fig. 3 a). Sometimes, however, specimens with more than two of these large paramylon grains are found. Depending on the degree of nutrition, these paramylon grains can also look thin and rod-shaped. An interesting and constant characteristic of Lepocinclis oxyuris is the striation of the pellicle. This consists of double lines. Broad and thin lines alternate here (s. fig. 3 c). In addition, the striation in Lepocinclis oxyuris is twisted clockwise, which is rare within the euglenids.