Subgenus (Tonicia) J. E. Gray, 1847

(7-0-5-3-0-4-3-10-3-0-0-0-0)
Ref. Kaas & Van Belle, 1980

arnheimi W. H. Dall, 1903

(7-0-5-3-0-4-3-10-3-1-0-0-0)
Ref. Keen, 1971 p 864 bw

crenulata [crenulatus] (W. J. Broderip, 1832) [not J. A. Risso, 1826]

(7-0-5-3-0-4-3-10-3-2-0-0-0)
[=Tonicia forbesii P. P. Carpenter, 1856]
Ref. Abbott, 1974 p 406
Keen, 1971 p 864

elegans (J. Frembly, 1827) [T]

(7-0-5-3-0-4-3-10-3-3-0-0-0)
Elegant Chiton
Size 2" long
Ref. Abbott, 1974 p 406
Abbott & Dance, 1982 p 285 c
Kaas & Van Belle, 1980

forbesii P. P. Carpenter, 1856[1857+]

(7-0-5-3-0-4-3-10-3-4-0-0-0)
Forbes Chiton
Size 2" long
Ref. Abbott & Dance, 1982 p 285 c
Syn. Tonicia crenulata (W. J. Broderip, 1832)
Ref. Abbott, 1974 p 406
Syn. Tonicia crenulatus W. J. Broderip, 1832
Ref. Keen, 1971 p 864 bw

pustulifera W. H. Dall, 1919

(7-0-5-3-0-4-3-10-3-5-0-0-0)
Ref. Abbott, 1974 p 406
Amer. Fish. Soc., 1988 p 150

schrammi (R. J. Shuttleworth, 1856)

(7-0-5-3-0-4-3-10-3-6-0-0-0)
Gold-flecked Chiton, Schramm's Chiton
Size 1" long
Ref. Abbott, 1974 p 406 bw
Amer. Fish. Soc., 1988 p 150