Genus Fluvinerita H. A. Pilsbry, 1932
(5-4-1-3-1-2-2-8-0-0-0-0-0) Ref. Lindner, 1977 p 40 [see also as Subgenus under Genus Nerita] tenebricosa (C. B. Adams) (5-4-1-3-1-2-2-8-0-1-0-0-0) Ref. Kaicher, 1987 #4830 bw
(5-4-1-3-1-2-2-8-0-0-0-0-0) Ref. Lindner, 1977 p 40 [see also as Subgenus under Genus Nerita]
tenebricosa (C. B. Adams) (5-4-1-3-1-2-2-8-0-1-0-0-0) Ref. Kaicher, 1987 #4830 bw