Genus Acanthochitona J. E. Gray, 1821

(7-0-5-1-0-1-1-4-0-0-0-0-0)
Ref. Kaas & Van Belle, 1980
Kaas & Van Belle, 1981 p 10
Syn. Acanthochetes J. E. Gray, 1840;
Acanthochites W. E. Leach in J. A. Risso, 1826;
Acanthochiton T. Iredale, 1915;
Chitonellus H. M. D. de Blainville, 1825 [not J. B. P. A. de Lamarck, 1819];
Gymnoplax J. E. Gray, 1821;
Hamachiton A. T. Middendorff, 1847;
Meturoplax H. A. Pilsbry, 1894;
Phakellopleura L. Guilding, 1829 [not Placellopleura P. P. Carpenter in W. H. Dall, 1879];
Platysemus A. T. Middendorff, 1847;
Stectoplax P. P. Carpenter in W. H. Dall, 1882;
Strechochiton A. Adams in C. M. Tapparone-Canefri, 1874
Ref. Abbott, 1974 p 406
Abbott & Dance, 1982 p 287
Kaas & Van Belle, 1981 p 10
Keen, 1971 p 866
Vaught, 1989 p 4

achates (A. A. Gould, 1859)

(7-0-5-1-0-1-1-4-0-1-0-0-0)
Syn. Chiton (Acanthochaetes) achates A. A. Gould, 1859
Ref. Kaas & Van Belle, 1980 p 1

andersoni Watters, 1981

(7-0-5-1-0-1-1-4-0-2-0-0-0)
Smooth Glass-hair Chiton
Ref. Amer. Fish. Soc., 1988 p 150

angelica W. H. Dall, 1919

(7-0-5-1-0-1-1-4-0-3-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 150
[=Acanthochitona avicula (P. P. Carpenter, 1864)]
Ref. Abbott, 1974 p 407
Kaas & Van Belle, 1980 p 8,13
Keen, 1971 p 866

arragonites (P. P. Carpenter, 1857)

(7-0-5-1-0-1-1-4-0-4-0-0-0)
Ref. Abbott, 1974 p 407
Keen, 1971 p 866, bw d
Syn. Acanthochites arragonites P. P. Carpenter, 1857 Ref. Kaas & Van Belle, 1980 p 10

astriger (L. A. Reeve, 1847)

(7-0-5-1-0-1-1-4-0-5-0-0-0)
[=Acanthochitona spiculosa (L. A. Reeve, 1847)]
Ref. Abbott, 1974 p 406

avicula (P. P. Carpenter, 1864)[(1866)]

(7-0-5-1-0-1-1-4-0-6-0-0-0)
Pacific Glass-haired Chiton
Size 0.3"-0.75" long
Ref. Amer. Fish. Soc., 1988 p 150
Syn. ? Acanthochitona angelica W. H. Dall, 1919;
Acanthochitona diegoensis H. A. Pilsbry, 1893
Ref. Abbott, 1974 p 407
Keen, 1971 p 866 bw d
Syn. Acanthochites avicula P. P. Carpenter, 1864;
Acanthochites avicula Var. diegoensis H. A. Pilsbry, 1893;
Acanthochitona angelica W. H. Dall, 1919
Ref. Kaas & Van Belle, 1980 p 13

balesae R. T. Abbott, 1954

(7-0-5-1-0-1-1-4-0-7-0-0-0)
Slender Glass-hair Chiton
Size 0.3" long
Ref. Amer. Fish. Soc., 1988 p 150
Syn. Acanthochitona elongata P. Kaas, 1972
Ref. Abbott, 1974 p 406
Kaas & Van Belle, 1980 p 14

communis (J. A. Risso, 1826)

(7-0-5-1-0-1-1-4-0-8-0-0-0)
Syn. Acanthochites carinatus H. Adams & G. F. Angas, 1864;
Acanthochites communis J. A. Risso, 1826;
Acanthochites hamatus A. T. de Rochebrune, 1882;
Chiton discrepans T. Brown, 1827;
? Chiton echinatus H. M. D. de Blainville, 1825;
Chiton facicularis Var. major R. A. Philippi, 1836;
Chiton (Acanthochites aeneus J. A. Risso, 1826
Ref. Kaas & Van Belle, 1980 p 29
Syn. Acanthochitona fascicularis (C. v. Linne, 1766)]
Chiton (Chiton) fascicularis C. v. Linne, 1767
Ref. Kaas & Van Belle, 1980 p 46

crinita (T. T. Pennant, 1777)

(7-0-5-1-0-1-1-4-0-9-0-0-0)
Syn. Acanthochitona fascicularis (C. v. Linne, 1766)]
Chiton (Chiton) fascicularis C. v. Linne, 1767 Ref. Kaas & Van Belle, 1980 p 46

diegoensis H. A. Pilsbry, 1893

(7-0-5-1-0-1-1-4-0-10-0-0-0)
[=Acanthochitona avicula (P. P. Carpenter, 1864)]
Ref. Abbott, 1974 p 407

elongata P. Kaas, 1972

(7-0-5-1-0-1-1-4-0-11-0-0-0)
[=Acanthochitona belesae H. A. Pilsbry in R. T. Abbott, 1954]
Ref. Abbott, 1974 p 406
Kaas & Van Belle, 1980 p 14

exquisita [exquisitus] (H. A. Pilsbry, 1893)

(7-0-5-1-0-1-1-4-0-12-0-0-0)
Exquisite Chiton
Size 1.5" long
Ref. Abbott, 1974 p 407
Abbott & Dance, 1982 p 287 c
Keen, 1971 p 866 bw
Syn. Acanthochites exquisitus H. A. Pilsbry, 1893 Ref. Kaas & Van Belle, 1980 p 45

ampullacea (H. A. Pilsbry, 1893)

(7-0-5-1-0-1-1-4-0-12-1-0-0)
Ref. Kaas & Van Belle, 1980 p 45

exquisita (H. A. Pilsbry, 1893)

(7-0-5-1-0-1-1-4-0-12-2-0-0)

fascicularis (C. v. Linne, 1766)[T][f]

(7-0-5-1-0-1-1-4-0-13-0-0-0)
Ref. Abbott, 1974 p 406
Kaas & Van Belle, 1981 p 10
[see Chiton fascicularis C. v. Linne, 1767] [=Acanthochitona communis (J. A. Risso, 1826)];
[=Acanthochitona crinita (T. T. Pennant, 1777)]
Ref. Kaas & Van Belle, 1980 p 46

hemphilli (H. A. Pilsbry, 1893)

(7-0-5-1-0-1-1-4-0-14-0-0-0)
Glass-hair Chiton
Ref. Amer. Fish. Soc., 1988 p 150
Syn. Acanthochites (Notoplax) hemphilli H. A. Pilsbry, 1893
Ref. Kaas & Van Belle, 1980 p 59

hirundiniformis (G. B. Sowerby, 1832)

(7-0-5-1-0-1-1-4-0-15-0-0-0)
Syn. ? Acanthochiton (Acanthochiton) coquimboensis E. Leloup, 1941;
Acanthochiton (Acanthochiton) peruvianus E. Leloup, 1941;
Acanthochitona tabogensis A. G. Smith, 1961
Ref. Keen, 1971 p 866 bw
Syn. Acanthochiton (Acanthochiton) coquimbensis E. Leloup, 1941;
? Acanthochiton (Acanthochiton) peruvianus E. Leloup, 1941;
Acanthochitona panamensis H. A. Pilsbry, 1932;
Acanthochitona tabogensis A. G. Smith, 1961
[see Chiton hirundinformis G. B. Sowerby, 1832]
Ref. Kaas & Van Belle, 1980 p 60

imperatrix Watters, 1981

(7-0-5-1-0-1-1-4-0-16-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 150

panamensis H. A. Pilsbry, 1932

(7-0-5-1-0-1-1-4-0-17-0-0-0)
[=Acanthochitona hirudiniformis (G. B. Sowerby, 1832)]
Ref. Kaas & Van Belle, 1980 p 95

pygmaea [pygmaeus] (H. A. Pilsbry, 1893)

(7-0-5-1-0-1-1-4-0-18-0-0-0)
Dwarf Glass-haired Chiton, Striate Glass-hair Chiton
Size 0.5"-0.75" long
Ref. Abbott, 1974 p 406
Amer. Fish. Soc., 1988 p 150
Syn. Acanthochites pygmaeus H. A. Pilsbry, 1893
Ref. Kaas & Van Belle, 1980 p 107

rhodea [rhodeus] (H. A. Pilsbry, 1893)

(7-0-5-1-0-1-1-4-0-19-0-0-0)
Ref. Keen, 1971 p 868 bw
Syn. Acanthochites rhodea H. A. Pilsbry, 1893
Ref. Kaas & Van Belle, 1980 p 111

spiculosa [spiculosus] (L. A. Reeve, 1847)

(7-0-5-1-0-1-1-4-0-20-0-0-0) Glass-haired Chiton
Size 1"-1.5" long
Syn. Acanthochitona astriger (L. A. Reeve, 1847)
Ref. Abbott, 1974 p 406
Syn. Chiton astriger L. A. Reeve, 1847;
Chiton spiculosus L. A. Reeve, 1847
Ref. Kaas & Van Belle, 1980 p 122

tabogensis A. G. Smith, 1961

(7-0-5-1-0-1-1-4-0-21-0-0-0)
[=Acanthochitona hirudiniformis (G. B. Sowerby, 1832)]
Ref. Keen, 1971 p 866
Kaas & Van Belle, 1980 p 129