Flabellaria paniculata can reach a length of 3 -- 15 metres ( 9.8 -- 49.2 ft ) .
Flabellaria paniculata is the only living species in this genus .
Flabellaria paniculata , the only living species in this genus , can reach a length of 3 -- 15 metres ( 9.8 -- 49.2 ft ) .