Subgenus (Tumbeziconcha) H. A. Pilsbry & A. A. Olsson, 1935

(3-4-4-0-21-3-2-41-20-0-0-0-0)
Ref. Keen, 1971 p 204
Lindner, 1977 p 111
[see also as Genus]

thracioides (A. Adams & L. A. Reeve, 1850)
(3-4-4-0-21-3-2-41-20-1-0-0-0)
Ref. Keen, 1971 p 204 bw