The only known species of the genus Titanophyllum, it was described in 2011 from specimens discovered in a cave in Greece.

It has several unusual characteristics including eyelessness and a small hook on its hind-most body section that may be involved in keeping the animal ‘locked’ when it coils-up defensively.

The function of the so-called “subanal hook” is unknown, but as it appears in both sexes and in juveniles, is thought to be related to survival rather than reproduction or attracting mates.

Subanal hooks are known in only of few members of the Julidae, including species of Unciger, Syrioiulus, and Typhloiulus, and may aid in keeping the body in a defensive coil or spiral when threatened.

[1] T. spiliarum was described from several specimens originally collected from a cave in Magnesia, Greece in 2003.