Subgenus (Polyschides) H. A. Pilsbry & B. Sharp, 1897 [1898]

(8-0-2-0-0-4-0-1-6-0-0-0-0)
Ref. Abbott, 1974 p 389
Keen, 1971 p 890
[see also as Genus]

californicus H. A. Pilsbry & B. Sharp, 1898

(8-0-2-0-0-4-0-1-6-1-0-0-0)
Size 0.55" long
Ref. Keen, 1971 p 891 d

carolinensis K. J. Bush, 1885

(8-0-2-0-0-4-0-1-6-2-0-0-0)
Carolina Cadulus
Ref. Abbott, 1974 p 389 d

magnus Boissevain, 1906

(8-0-2-0-0-4-0-1-6-3-0-0-0)
[=Polyschides magnus (Boissevain, 1906)]
Ref. Habe, 1964 p 51

quadridentatus (W. H. Dall, 1881)

(8-0-2-0-0-4-0-1-6-4-0-0-0)
Four-toothed Cadulus
Syn. Cadulus (Cadulus) acompsus J. Henderson, 1920
Ref. Abbott, 1974 p 389 d

quadrifissatus H. A. Pilsbry & B. Sharp, 1898

(8-0-2-0-0-4-0-1-6-5-0-0-0)
Ref. Abbott, 1974 p 389

tetraschistus [tatraschistus] R. B. Watson, 1879 [T]

(8-0-2-0-0-4-0-1-6-6-0-0-0)
Ref. Abbott, 1974 p 389
[=Polyschides tatraschistus (R. B. Watson, 1879)]
Ref. Habe, 1964 p 50

tetrodon H. A. Pilsbry & B. Sharp, 1898

(8-0-2-0-0-4-0-1-6-7-0-0-0)
Tetrodon Cadulus
Ref. Abbott, 1974 p 389 bw