Hanleya hanleyi (W. Bean, 1844) (additional source)
Hemiarthrum setulosum P. P. Carpenter, 1876 (redescription)
Ischnochiton johnstoni Cotton, 1937 accepted as Ischnochiton exaratus (G. O. Sars, 1878) accepted as Stenosemus exaratus (G. O. Sars, 1878) (source of synonymy)
Lepidopleurus abbreviatus Dall, 1908 accepted as Belknapchiton halistreptus abbreviatus (Dall, 1908) (additional source)
Leptochiton (Leptochiton) gascognensis Kaas & Van Belle, 1985 accepted as Leptochiton gascognensis Kaas & Van Belle, 1985 (original description)
Leptochiton (Leptochiton) geronensis Kaas & Van Belle, 1985 accepted as Leptochiton geronensis Kaas & Van Belle, 1985 (original description)
Leptochiton rarinota (Jeffreys, 1883) (subsequent type designation)
Polyplacophora (additional source)

Antarctica for Hemiarthrum setulosum P. P. Carpenter, 1876 
Basque Coast of Spain for Leptochiton asellus (Gmelin, 1791) 
Basque Coast of Spain for Leptochiton cancellatus (G. B. Sowerby II, 1840) 
Croatian Exclusive Economic Zone for Leptochiton cancellatus (G. B. Sowerby II, 1840) 
Crozet Islands Exclusive Economic Zone for Hemiarthrum setulosum P. P. Carpenter, 1876 
Cypriote Exclusive Economic Zone for Leptochiton cancellatus (G. B. Sowerby II, 1840) 
Fisheries Zone around Svalbard for Leptochiton asellus (Gmelin, 1791) 
French part of Bay of Biscay and the Iberian Coast for Leptochiton asellus (Gmelin, 1791) 
French part of Bay of Biscay and the Iberian Coast for Leptochiton gascognensis Kaas & Van Belle, 1985 
French part of Bay of Biscay and the Iberian Coast for Leptochiton leloupi Kaas, 1979 
French part of the Bay of Biscay for Leptochiton alveolus (Lovén, 1846) 
Greenlandic part of the North Atlantic Ocean for Leptochiton asellus (Gmelin, 1791)  (doubtful)
Icelandic Exclusive Economic Zone for Leptochiton asellus (Gmelin, 1791) 
Irish part of the Celtic Sea for Leptochiton tenuis Kaas, 1979 
Macquarie Island Exclusive Economic Zone for Hemiarthrum setulosum P. P. Carpenter, 1876 
Norwegian Exclusive Economic Zone for Leptochiton alveolus (Lovén, 1846) 
Norwegian Exclusive Economic Zone for Leptochiton asellus (Gmelin, 1791) 
Patagonia for Hemiarthrum setulosum P. P. Carpenter, 1876 
Russian part of the Barentsz Sea for Leptochiton asellus (Gmelin, 1791) 
South Georgian Exclusive Economic Zone (Overlapping claim) for Hemiarthrum setulosum P. P. Carpenter, 1876 
South Orkneys for Hemiarthrum setulosum P. P. Carpenter, 1876 
South Shetland Islands for Hemiarthrum setulosum P. P. Carpenter, 1876 
Spain - Demarcación Marina Levantino-Balear for Leptochiton geronensis Kaas & Van Belle, 1985 
Spain - Demarcación Marina Noratlántica for Leptochiton alveolus (Lovén, 1846) 
Spain - Demarcación Marina Noratlántica for Leptochiton asellus (Gmelin, 1791) 
Spain - Demarcación Marina Noratlántica for Leptochiton cancellatus (G. B. Sowerby II, 1840) 
Spain - Demarcación Marina Noratlántica for Leptochiton cancellatus (G. B. Sowerby II, 1840) 
Tierra del Fuego for Hemiarthrum setulosum P. P. Carpenter, 1876 
United Kingdom Exclusive Economic Zone for Leptochiton asellus (Gmelin, 1791)