So far I have only been able to record Enchelyodon monilatus exclusively in the Simmelried, where I find it very rarely. Within 20 years I found only 5 specimens. I usually find the specimens in floating detritus flakes in old samples.

The elongated specimens in my population were 77–120 µm long, which is at the lower limit of the range of 120–170 µm given by Kahl. However, it also shows the high variability of the body length. The macronucleus is moniliform and consist in my specimens of 6–9 nodules. The micronuclei are not mentioned in Kahl’s decription, but in one of my examined specimens I could detect 2–3 of them (s. figs. 3 b and 5). Kahl describes the extrusomes as rod-shaped with a length of 13–15 µm. In my specimens they were slightly curved and 14–21 µm long. One end is clearly tapered, giving them a tusk-like appearance (s. figs. 3 c and 5). Kahl gives the number of cilia rows on one side of the body with 12, which agrees exactly with my observations.

As there are no further findings and descriptions of Enchelyodon monilatus after Kahl, it is difficult to assess whether the characteristics of the specimens in my population are covered by Kahl’s brief description. A similar species Enchelyodon lageniformis was described by Vuxanovici in 1963, which is 80–120 µm long and has also a moniliform macronucleus consisting of 6 nodules. However, this species is not sufficiently characterized and possibly synonymous with Enchelyodon monilatus. Therefore I keep the classification Enchelyodon monilatus for the time being.