Subgenus (Bathoxiphus) H. A. Pilsbry & B. Sharp, 1897

(8-0-1-0-1-3-2-11-3-0-0-0-0)
Ref. Abbott, 1974 p 387
[see also as Genus]

Shell: The shell is thin, compressed laterally and nearly smooth.
A broad slit is present on the convex side of the posterior (apical) end of the shell.

applanatum Colman, 1958

(8-0-1-0-1-3-2-11-3-1-0-0-0)
[=Bathoxiphus soyomaruae (T. Okutani, 1964)
Ref. Habe, 1964 p 33

didymum R. B. Watson, 1879

(8-0-1-0-1-3-2-11-3-2-0-0-0)
Watson's Flattened Tusk
Ref. Abbott, 1974 p 387 bw

ensiculus J. G. Jeffreys, 1877 [T]

(8-0-1-0-1-3-2-11-3-3-0-0-0)
Jeffrey's Razor Tusk
Ref. Abbott, 1974 p 387 d
[=Bathoxiphus ensiculus (J. G. Jeffreys, 1877)]
Ref. Habe, 1964 p 33

soyomaruae T. Okutani, 1964

(8-0-1-0-1-3-2-11-3-4-0-0-0)
[=Bathoxiphus soyomaruae (T. Okutani, 1964)]
Ref. Habe, 1964 p 33

tricarinatus (Boissevain, 1906)

(8-0-1-0-1-3-2-11-3-5-0-0-0)
[=Bathoxiphus tricarinatum Boissevain, 1906]
Ref. Habe, 1964 p 33 d