Subgenus (Iwakawatrochus) T. Kuroda & T. Habe, 1954

(5-4-1-3-2-11-8-5-2-0-0-0-0)
Ref. Lindner, 1977 p 36
Vaught, 1989 p 9
[see also as Genus under Subfamily: TROCHINAE]