Subgenus (Homalopoma) P. P. Carpenter, 1864
(5-4-1-3-2-12-3-4-5-0-0-0-0)

albidum (W. H. Dall, 1881)
(5-4-1-3-2-12-3-4-5-1-0-0-0)
White Dwarf Turban, White Dwarf-turban
Ref. Abbott, 1974 p 60 d
Amer. Fish. Soc., 1988 p 57

Var. limatum (W. H. Dall, 1889)
(5-4-1-3-2-12-3-4-5-1-0-0-1)
Ref. Abbott, 1974 p 60

baculum P. P. Carpenter, 1864
(5-4-1-3-2-12-3-4-5-2-0-0-0)
Berry Dwarf Turban, Berry Dwarf-turban
Ref. Abbott, 1974 p 61
Amer. Fish. Soc., 1988 p 57

carpenteri (H. A. Pilsbry, 1888)
(5-4-1-3-2-12-3-4-5-3-0-0-0)
Carpenter's Dwarf Turban
Ref. Abbott, 1974 p 60 bw
Amer. Fish. Soc., 1988 p 57

engbergi (G. Willett, 1929)
(5-4-1-3-2-12-3-4-5-4-0-0-0)
Ref. Abbott, 1974 p 61
Amer. Fish. Soc., 1988 p 57

fenestratum P. Bartsch, 1919
(5-4-1-3-2-12-3-4-5-5-0-0-0)
[=Homalopoma (Homalopoma) paucicostatum (W. H. Dall, 1871)]
Ref. Abbott, 1974 p 61

indutum (R. B. Watson, 1879)
(5-4-1-3-2-12-3-4-5-6-0-0-0)
Two-faced Dwarf-turban
Ref. Abbott, 1974 p 61
Amer. Fish. Soc., 1988 p 57

juanensis [juanense] (W. H. Dall, 1919)
(5-4-1-3-2-12-3-4-5-7-0-0-0)
Northwest Dwarf-turban
Ref. Abbott, 1974 p 61
Amer. Fish. Soc., 1988 p 57

linnei (W. H. Dall, 1889)
(5-4-1-3-2-12-3-4-5-8-0-0-0)
Ref. Abbott, 1974 p 60

luridum (W. H. Dall, 1885)
(5-4-1-3-2-12-3-4-5-9-0-0-0)
Dark Dwarf Turban, Dark Dwarf-turban
Ref. Abbott, 1974 p 60 bw
Amer. Fish. Soc., 1988 p 57

paucicostatum (W. H. Dall, 1871)
(5-4-1-3-2-12-3-4-5-10-0-0-0)
Few-rib Dwarf-turban
Ref. Amer. Fish. Soc., 1988 p 57
Syn. Homalopoma (Homalopoma) fenestratum P. Bartsch, 1919
Ref. Abbott, 1974 p 61

radiatum (W. H. Dall, 1918)
(5-4-1-3-2-12-3-4-5-11-0-0-0)
Rayed Dwarf-turban
Ref. Amer. Fish. Soc., 1988 p 57

sanguineus (C. v. Linne, 1758) [T]
(5-4-1-3-2-12-3-4-5-12-0-0-0)
Ref. Abbott, 1974 p 60

transenna (R. B. Watson, 1879)
(5-4-1-3-2-12-3-4-5-13-0-0-0)
Snare Turban
Ref. Abbott & Dance, 1982 p 48 c