Subgenus (Tropidomya) W. H. Dall & Smith, 1886
(3-2-4-0-2-1-1-9-12-0-0-0-0) Syn. (Goniophora) J. G. Jeffreys, 1883 for Tropidophora [not Phillips, 1848]; (Tropidophora) J. G. Jeffreys, 1882 [not F. H. Troschel, 1847] Ref. Vaught, 1989 p 141