Subgenus (Cavilinga) A. Chavan, 1937
(3-4-4-0-20-4-2-40-2-0-0-0-0) Ref. Keen, 1971 p 120 [=(Parvilucina) W. H. Dall, 1937] Ref. Vaught, 1989 p 124 prolongata P. P. Carpenter, 1857 (3-4-4-0-20-4-2-40-2-1-0-0-0) Ref. Keen, 1971 p 120 bw d
(3-4-4-0-20-4-2-40-2-0-0-0-0) Ref. Keen, 1971 p 120 [=(Parvilucina) W. H. Dall, 1937] Ref. Vaught, 1989 p 124
prolongata P. P. Carpenter, 1857 (3-4-4-0-20-4-2-40-2-1-0-0-0) Ref. Keen, 1971 p 120 bw d