Tristichotrochus gendalli (B.A. Marshall, 1979) Height 17mm, Width 15mm Marine, Native - Endemic Kermadec Islands, from 366-402m |
Tristichotrochus tosaensis Kuroda & Habe, 1961 Height 23mm, Width 21mm Marine, Native - Non-endemic Western Pacific. Southern Japan, Philippine Islands, Chesterfield Islands, Loyalty Ridge, Kermadec Islands, from 465-501m |