This millipede is readily identified by having a well developed dorsal and ventral projection to the telson (otherwise only seen in C. pyrenaicusand Enantiulus armatus, which has a noticably hairy body).
Discovered at Ventnor Botanic Gardens, Isle of Wight, in 2015, and subsequently Plymouth, Devon, in 2016 (Barber & Read, 2016).
Subsequently, it has been found at a site in Northern Ireland (Anderson, 2018).
Barber, A.D. & Read, H.J. (2016) Cylindroiulus apenninorum (Brölemann, 1897) (Diplopoda, Julida: Julidae) new for the UK from the Isle of Wight and South Devon. Bulletin of the British Myriapod & Isopod Group29: 28-33.
Anderson, R. (2018)Cylindroiulus apenninorum (Brölemann, 1897) (Diplopoda: Julidae) found in Ireland. Bulletin of the British Myriapod & Isopod Group30: 68-70.