Genus Nioche L. G. Hertlein & A. M. Strong, 1948

(3-4-4-0-26-7-1-47-0-0-0-0-0)
Ref. Vokes, 1980 p 178
[see as it applies to subgenus (Leukoma) under Protothaca]
Ref. Abbott, 1974 p 526
[see also as Subgenus under Genus Chione]